/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 07:13:45,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 07:13:45,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 07:13:45,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-16 07:13:45,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 07:13:45,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 07:13:45,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 07:13:45,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 07:13:45,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 07:13:45,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 07:13:45,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 07:13:45,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 07:13:45,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 07:13:46,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 07:13:46,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 07:13:46,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 07:13:46,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 07:13:46,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 07:13:46,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 07:13:46,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 07:13:46,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 07:13:46,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 07:13:46,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 07:13:46,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 07:13:46,034 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 07:13:46,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 07:13:46,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 07:13:46,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 07:13:46,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 07:13:46,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 07:13:46,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 07:13:46,035 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 07:13:46,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 07:13:46,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 07:13:46,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 07:13:46,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 07:13:46,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 07:13:46,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 07:13:46,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 07:13:46,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:13:46,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 07:13:46,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 07:13:46,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 07:13:46,036 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 07:13:46,037 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 07:13:46,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 07:13:46,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 07:13:46,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 07:13:46,312 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 07:13:46,316 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 07:13:46,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2021-04-16 07:13:46,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14adcb8cb/332f159c9e314e70b3b5c6f94ced9990/FLAGe6c9d252d [2021-04-16 07:13:46,709 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 07:13:46,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2021-04-16 07:13:46,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14adcb8cb/332f159c9e314e70b3b5c6f94ced9990/FLAGe6c9d252d [2021-04-16 07:13:46,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14adcb8cb/332f159c9e314e70b3b5c6f94ced9990 [2021-04-16 07:13:46,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 07:13:46,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 07:13:46,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 07:13:46,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 07:13:46,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 07:13:46,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:46,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d508ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46, skipping insertion in model container [2021-04-16 07:13:46,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:46,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 07:13:46,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 07:13:46,885 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i[895,908] [2021-04-16 07:13:46,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:13:46,895 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 07:13:46,946 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i[895,908] [2021-04-16 07:13:46,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:13:46,965 INFO L208 MainTranslator]: Completed translation [2021-04-16 07:13:46,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46 WrapperNode [2021-04-16 07:13:46,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 07:13:46,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 07:13:46,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 07:13:46,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 07:13:46,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:46,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:46,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:46,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:46,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:46,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:46,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (1/1) ... [2021-04-16 07:13:47,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 07:13:47,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 07:13:47,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 07:13:47,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 07:13:47,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:13:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 07:13:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 07:13:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 07:13:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 07:13:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 07:13:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 07:13:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 07:13:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 07:13:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-04-16 07:13:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-04-16 07:13:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 07:13:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 07:13:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 07:13:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 07:13:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-16 07:13:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 07:13:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 07:13:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 07:13:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 07:13:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 07:13:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 07:13:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 07:13:47,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 07:13:47,302 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 07:13:47,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:13:47 BoogieIcfgContainer [2021-04-16 07:13:47,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 07:13:47,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 07:13:47,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 07:13:47,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 07:13:47,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 07:13:46" (1/3) ... [2021-04-16 07:13:47,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f931712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:13:47, skipping insertion in model container [2021-04-16 07:13:47,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:13:46" (2/3) ... [2021-04-16 07:13:47,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f931712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:13:47, skipping insertion in model container [2021-04-16 07:13:47,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:13:47" (3/3) ... [2021-04-16 07:13:47,309 INFO L111 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2021-04-16 07:13:47,313 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 07:13:47,316 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 07:13:47,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 07:13:47,341 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 07:13:47,341 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 07:13:47,341 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 07:13:47,341 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 07:13:47,341 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 07:13:47,341 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 07:13:47,341 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 07:13:47,341 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 07:13:47,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-16 07:13:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-04-16 07:13:47,360 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:47,360 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:47,360 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:47,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:47,367 INFO L82 PathProgramCache]: Analyzing trace with hash 253912119, now seen corresponding path program 1 times [2021-04-16 07:13:47,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:47,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934252736] [2021-04-16 07:13:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:47,421 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:13:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:47,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:47,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:47,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:47,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:47,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:47,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934252736] [2021-04-16 07:13:47,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:47,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 07:13:47,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156559636] [2021-04-16 07:13:47,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 07:13:47,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:47,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 07:13:47,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 07:13:47,583 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:47,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:47,676 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-04-16 07:13:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-16 07:13:47,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-04-16 07:13:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:47,682 INFO L225 Difference]: With dead ends: 33 [2021-04-16 07:13:47,685 INFO L226 Difference]: Without dead ends: 14 [2021-04-16 07:13:47,688 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-16 07:13:47,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-04-16 07:13:47,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-04-16 07:13:47,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:47,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-04-16 07:13:47,718 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-04-16 07:13:47,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:47,719 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-04-16 07:13:47,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:47,719 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-04-16 07:13:47,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-04-16 07:13:47,719 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:47,720 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:47,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 07:13:47,720 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:47,721 INFO L82 PathProgramCache]: Analyzing trace with hash -684163825, now seen corresponding path program 1 times [2021-04-16 07:13:47,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:47,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780074181] [2021-04-16 07:13:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:47,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:47,755 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_10) InVars {main_~mid~0=v_main_~mid~0_10} OutVars{main_~mid~0=v_main_~mid~0_10} AuxVars[] AssignedVars[] [2021-04-16 07:13:47,765 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:47,769 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,772 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,775 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,778 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,780 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,782 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,791 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:47,793 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,794 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:47,797 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:47,800 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,803 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,805 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,807 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,809 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,810 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:13:47,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:47,830 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:47,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:47,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:47,878 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:47,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:47,894 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-16 07:13:47,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:13:47,915 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:47,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:47,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:47,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:47,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:47,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:47,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:47,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:47,994 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:13:47,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:47,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:13:48,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:13:48,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:48,028 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:13:48,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:48,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:13:48,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:48,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780074181] [2021-04-16 07:13:48,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:48,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-04-16 07:13:48,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911818601] [2021-04-16 07:13:48,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-16 07:13:48,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:48,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-16 07:13:48,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-04-16 07:13:48,063 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:48,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:48,437 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-04-16 07:13:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-16 07:13:48,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-04-16 07:13:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:48,454 INFO L225 Difference]: With dead ends: 20 [2021-04-16 07:13:48,454 INFO L226 Difference]: Without dead ends: 15 [2021-04-16 07:13:48,456 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 385.0ms TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2021-04-16 07:13:48,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-04-16 07:13:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-04-16 07:13:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-04-16 07:13:48,464 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2021-04-16 07:13:48,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:48,465 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-04-16 07:13:48,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:48,465 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-04-16 07:13:48,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-04-16 07:13:48,465 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:48,465 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:48,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 07:13:48,465 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:48,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:48,466 INFO L82 PathProgramCache]: Analyzing trace with hash 300252983, now seen corresponding path program 2 times [2021-04-16 07:13:48,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:48,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017892692] [2021-04-16 07:13:48,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:48,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:48,495 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_16) InVars {main_~mid~0=v_main_~mid~0_16} OutVars{main_~mid~0=v_main_~mid~0_16} AuxVars[] AssignedVars[] [2021-04-16 07:13:48,503 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:48,508 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,512 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,514 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:48,515 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:48,533 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:48,538 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,542 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,544 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,546 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,548 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,550 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,552 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,554 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,556 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,558 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,559 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:13:48,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:48,578 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:48,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:48,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:48,636 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:48,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:48,651 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:13:48,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:48,663 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:48,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:48,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:48,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:48,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:48,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:48,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:48,731 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:13:48,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:48,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:13:48,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:48,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:48,779 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:48,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:48,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:48,820 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:48,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:48,828 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:48,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:48,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:48,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:48,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:48,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017892692] [2021-04-16 07:13:48,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:48,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-04-16 07:13:48,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216313978] [2021-04-16 07:13:48,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-16 07:13:48,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:48,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-16 07:13:48,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-04-16 07:13:48,877 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:49,315 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-04-16 07:13:49,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-16 07:13:49,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-04-16 07:13:49,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:49,317 INFO L225 Difference]: With dead ends: 21 [2021-04-16 07:13:49,317 INFO L226 Difference]: Without dead ends: 16 [2021-04-16 07:13:49,317 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 441.1ms TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-04-16 07:13:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-04-16 07:13:49,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-04-16 07:13:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-04-16 07:13:49,323 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-04-16 07:13:49,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:49,323 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-04-16 07:13:49,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:49,323 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-04-16 07:13:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-04-16 07:13:49,323 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:49,323 INFO L519 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:49,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-16 07:13:49,324 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:49,324 INFO L82 PathProgramCache]: Analyzing trace with hash 752402959, now seen corresponding path program 3 times [2021-04-16 07:13:49,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:49,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393232762] [2021-04-16 07:13:49,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:49,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:49,351 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_23) InVars {main_~mid~0=v_main_~mid~0_23} OutVars{main_~mid~0=v_main_~mid~0_23} AuxVars[] AssignedVars[] [2021-04-16 07:13:49,354 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:49,359 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,364 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:49,366 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,366 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:49,368 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:49,372 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,391 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,394 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,397 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,399 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,402 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,404 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,406 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,408 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,411 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,412 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:13:49,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:49,448 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:49,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:49,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:49,497 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:49,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:49,507 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:13:49,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:49,520 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:49,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:49,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:49,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:49,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:49,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:49,604 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:13:49,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:49,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:13:49,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:49,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:49,649 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:49,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:49,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:49,698 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:49,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:49,706 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:49,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:49,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:49,733 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:49,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:49,754 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:49,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:49,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:49,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:49,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:49,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393232762] [2021-04-16 07:13:49,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:49,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-04-16 07:13:49,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92929847] [2021-04-16 07:13:49,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-16 07:13:49,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:49,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-16 07:13:49,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-04-16 07:13:49,785 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:50,163 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2021-04-16 07:13:50,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:50,264 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-04-16 07:13:50,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-16 07:13:50,265 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-04-16 07:13:50,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:50,266 INFO L225 Difference]: With dead ends: 22 [2021-04-16 07:13:50,266 INFO L226 Difference]: Without dead ends: 17 [2021-04-16 07:13:50,267 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 529.2ms TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-04-16 07:13:50,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-04-16 07:13:50,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-04-16 07:13:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:50,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-04-16 07:13:50,278 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2021-04-16 07:13:50,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:50,279 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-04-16 07:13:50,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:50,279 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-04-16 07:13:50,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-04-16 07:13:50,280 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:50,280 INFO L519 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:50,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-16 07:13:50,280 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:50,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:50,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1884150327, now seen corresponding path program 4 times [2021-04-16 07:13:50,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:50,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821059304] [2021-04-16 07:13:50,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:50,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:50,299 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_31) InVars {main_~mid~0=v_main_~mid~0_31} OutVars{main_~mid~0=v_main_~mid~0_31} AuxVars[] AssignedVars[] [2021-04-16 07:13:50,303 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:50,305 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,308 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,311 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:50,311 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:50,315 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,317 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,319 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,320 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:50,323 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,325 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,327 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,331 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,333 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,335 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,337 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,339 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:13:50,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:50,355 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:50,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:50,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:50,418 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:50,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:50,445 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:13:50,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:13:50,461 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:13:50,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:50,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:50,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:50,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:50,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:50,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:50,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:50,538 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:13:50,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:50,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:13:50,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:50,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:50,589 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:50,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:50,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:50,613 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:13:50,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:50,618 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:50,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:50,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:50,642 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:13:50,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:50,646 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:50,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:50,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:50,689 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:13:50,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:50,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:50,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:50,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:50,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:50,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:50,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821059304] [2021-04-16 07:13:50,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:50,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-04-16 07:13:50,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042146009] [2021-04-16 07:13:50,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-16 07:13:50,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:50,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-16 07:13:50,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-04-16 07:13:50,732 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:51,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:51,216 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-04-16 07:13:51,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-16 07:13:51,217 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-04-16 07:13:51,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:51,218 INFO L225 Difference]: With dead ends: 23 [2021-04-16 07:13:51,218 INFO L226 Difference]: Without dead ends: 18 [2021-04-16 07:13:51,218 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 568.5ms TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2021-04-16 07:13:51,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-04-16 07:13:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-04-16 07:13:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-04-16 07:13:51,223 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2021-04-16 07:13:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:51,224 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-04-16 07:13:51,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-04-16 07:13:51,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-04-16 07:13:51,224 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:51,224 INFO L519 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:51,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-16 07:13:51,225 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:51,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1686386929, now seen corresponding path program 5 times [2021-04-16 07:13:51,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:51,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526424014] [2021-04-16 07:13:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:51,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:51,232 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_40) InVars {main_~mid~0=v_main_~mid~0_40} OutVars{main_~mid~0=v_main_~mid~0_40} AuxVars[] AssignedVars[] [2021-04-16 07:13:51,235 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:51,236 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,239 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:51,241 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,241 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:51,244 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,245 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,247 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,249 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:51,251 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,253 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,255 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,257 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,258 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,260 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,261 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,262 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:13:51,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:51,277 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:51,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:51,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:51,305 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:51,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:51,317 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:13:51,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:51,325 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:51,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:51,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:51,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:51,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:51,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:51,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:51,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:51,382 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:13:51,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:51,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:13:51,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:51,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:51,415 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:51,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:51,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:51,447 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:13:51,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:51,450 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:51,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:51,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:51,473 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:13:51,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:51,476 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:51,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:51,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:51,508 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:13:51,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:51,515 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:51,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:51,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:13:51,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:51,560 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:13:51,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:13:51,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:13:51,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:51,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:51,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526424014] [2021-04-16 07:13:51,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:51,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-04-16 07:13:51,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006740571] [2021-04-16 07:13:51,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-16 07:13:51,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:51,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-16 07:13:51,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-04-16 07:13:51,613 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:52,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:52,129 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-04-16 07:13:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-16 07:13:52,130 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-04-16 07:13:52,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:52,130 INFO L225 Difference]: With dead ends: 24 [2021-04-16 07:13:52,130 INFO L226 Difference]: Without dead ends: 19 [2021-04-16 07:13:52,131 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 574.0ms TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2021-04-16 07:13:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-04-16 07:13:52,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-04-16 07:13:52,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:52,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-04-16 07:13:52,150 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2021-04-16 07:13:52,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:52,150 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-04-16 07:13:52,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-04-16 07:13:52,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-04-16 07:13:52,151 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:52,151 INFO L519 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:52,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-16 07:13:52,151 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:52,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:52,151 INFO L82 PathProgramCache]: Analyzing trace with hash -703892169, now seen corresponding path program 6 times [2021-04-16 07:13:52,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:52,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887945645] [2021-04-16 07:13:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:52,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:52,158 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_50) InVars {main_~mid~0=v_main_~mid~0_50} OutVars{main_~mid~0=v_main_~mid~0_50} AuxVars[] AssignedVars[] [2021-04-16 07:13:52,161 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:52,161 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,165 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:52,167 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,167 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:52,170 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,171 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,173 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,175 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:52,177 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,180 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,182 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,183 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,185 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,187 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,188 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,189 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:13:52,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:52,215 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:52,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:52,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:52,236 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:52,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:52,244 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:13:52,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:52,267 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:52,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:52,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:52,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:52,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:52,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:52,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:52,307 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:13:52,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:52,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-16 07:13:52,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-16 07:13:52,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:52,330 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:52,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:52,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:52,369 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:52,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:52,371 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:52,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:52,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:52,395 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:52,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:52,399 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:52,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:52,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:52,439 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:52,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:52,442 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:52,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:52,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:52,497 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:52,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:52,500 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:52,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:52,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:52,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:52,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:52,560 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:52,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:52,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:52,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:52,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:52,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887945645] [2021-04-16 07:13:52,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:52,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-16 07:13:52,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383542438] [2021-04-16 07:13:52,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-16 07:13:52,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:52,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-16 07:13:52,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-04-16 07:13:52,636 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:53,361 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2021-04-16 07:13:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-04-16 07:13:53,362 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-04-16 07:13:53,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:53,362 INFO L225 Difference]: With dead ends: 25 [2021-04-16 07:13:53,362 INFO L226 Difference]: Without dead ends: 20 [2021-04-16 07:13:53,363 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 825.3ms TimeCoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-04-16 07:13:53,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-04-16 07:13:53,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-04-16 07:13:53,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-04-16 07:13:53,368 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2021-04-16 07:13:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:53,368 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-04-16 07:13:53,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:53,369 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-04-16 07:13:53,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-04-16 07:13:53,370 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:53,370 INFO L519 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:53,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-16 07:13:53,370 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:53,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:53,371 INFO L82 PathProgramCache]: Analyzing trace with hash -311325681, now seen corresponding path program 7 times [2021-04-16 07:13:53,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:53,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331492501] [2021-04-16 07:13:53,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:53,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:53,377 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_61) InVars {main_~mid~0=v_main_~mid~0_61} OutVars{main_~mid~0=v_main_~mid~0_61} AuxVars[] AssignedVars[] [2021-04-16 07:13:53,379 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:53,381 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,383 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,385 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,386 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,388 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,389 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,391 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,397 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:53,398 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:53,400 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:53,402 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,404 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,411 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,413 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,415 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,416 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:13:53,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:53,443 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:53,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:53,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:53,490 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:53,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:53,498 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:13:53,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:53,514 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:53,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:53,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:53,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:53,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:53,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:53,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:53,551 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:13:53,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:53,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:13:53,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:13:53,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:53,571 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:13:53,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:53,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:13:53,606 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:13:53,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:53,608 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:13:53,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:53,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:13:53,630 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:13:53,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:53,638 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:13:53,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:53,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:13:53,679 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:13:53,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:53,682 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:13:53,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:53,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:13:53,713 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:13:53,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:53,716 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:13:53,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:53,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:13:53,745 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:13:53,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:53,750 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:13:53,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:53,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:13:53,799 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:13:53,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:53,802 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:13:53,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:53,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:13:53,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:53,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:53,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331492501] [2021-04-16 07:13:53,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:53,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-16 07:13:53,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632946096] [2021-04-16 07:13:53,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-16 07:13:53,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:53,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-16 07:13:53,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-04-16 07:13:53,848 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:54,650 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-04-16 07:13:54,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-16 07:13:54,651 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-04-16 07:13:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:54,651 INFO L225 Difference]: With dead ends: 26 [2021-04-16 07:13:54,651 INFO L226 Difference]: Without dead ends: 21 [2021-04-16 07:13:54,652 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 789.4ms TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2021-04-16 07:13:54,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-04-16 07:13:54,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-04-16 07:13:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-04-16 07:13:54,660 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2021-04-16 07:13:54,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:54,660 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-04-16 07:13:54,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:54,660 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-04-16 07:13:54,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-04-16 07:13:54,661 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:54,661 INFO L519 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:54,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-16 07:13:54,661 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:54,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:54,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1026666441, now seen corresponding path program 8 times [2021-04-16 07:13:54,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:54,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108631540] [2021-04-16 07:13:54,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:54,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:54,670 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_73) InVars {main_~mid~0=v_main_~mid~0_73} OutVars{main_~mid~0=v_main_~mid~0_73} AuxVars[] AssignedVars[] [2021-04-16 07:13:54,672 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:54,675 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,676 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,678 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,679 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,685 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,685 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,688 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:54,706 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,706 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:54,712 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,714 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,715 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,717 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,719 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:54,720 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,721 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:13:54,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:54,736 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:54,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:54,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:54,758 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:54,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:54,766 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:13:54,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:13:54,788 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:54,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:54,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:54,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:54,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:54,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:54,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:54,826 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-04-16 07:13:54,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:54,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:54,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 07:13:54,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:13:54,844 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-04-16 07:13:54,845 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:54,860 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:54,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:13:55,276 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:55,277 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:55,310 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:55,311 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:55,328 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:55,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:13:55,347 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:55,348 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:55,366 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:13:55,387 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:55,388 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:55,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:55,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108631540] [2021-04-16 07:13:55,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:55,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-04-16 07:13:55,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137232119] [2021-04-16 07:13:55,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-16 07:13:55,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:55,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-16 07:13:55,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=259, Unknown=1, NotChecked=0, Total=306 [2021-04-16 07:13:55,423 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:55,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:55,921 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2021-04-16 07:13:55,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-04-16 07:13:55,922 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-04-16 07:13:55,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:55,923 INFO L225 Difference]: With dead ends: 27 [2021-04-16 07:13:55,924 INFO L226 Difference]: Without dead ends: 22 [2021-04-16 07:13:55,924 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 999.9ms TimeCoverageRelationStatistics Valid=116, Invalid=813, Unknown=1, NotChecked=0, Total=930 [2021-04-16 07:13:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-04-16 07:13:55,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-04-16 07:13:55,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:55,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-04-16 07:13:55,932 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2021-04-16 07:13:55,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:55,932 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-04-16 07:13:55,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:55,932 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-04-16 07:13:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-04-16 07:13:55,932 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:55,932 INFO L519 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:55,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-16 07:13:55,932 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:55,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:55,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1727393521, now seen corresponding path program 9 times [2021-04-16 07:13:55,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:55,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261822264] [2021-04-16 07:13:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:55,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:55,938 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_86) InVars {main_~mid~0=v_main_~mid~0_86} OutVars{main_~mid~0=v_main_~mid~0_86} AuxVars[] AssignedVars[] [2021-04-16 07:13:55,940 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:55,942 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,944 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,945 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,947 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,949 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,951 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,953 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,955 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:55,955 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:55,957 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:55,959 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,960 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,962 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,963 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,965 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,965 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:13:55,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:55,980 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:55,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:55,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:55,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:56,001 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:56,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:56,008 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-16 07:13:56,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:13:56,023 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:56,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:56,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:56,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:56,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:56,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:56,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:56,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:56,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:56,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:56,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:56,060 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-04-16 07:13:56,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:56,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:56,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 07:13:56,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:13:56,079 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-04-16 07:13:56,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:13:56,094 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:56,097 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:56,288 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:56,289 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:56,305 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:56,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:13:56,322 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:56,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:13:56,340 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:56,340 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:56,360 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:56,361 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:56,380 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:56,382 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:56,403 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:13:56,404 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:13:56,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:56,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:56,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261822264] [2021-04-16 07:13:56,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:56,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-04-16 07:13:56,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010713201] [2021-04-16 07:13:56,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-16 07:13:56,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:56,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-16 07:13:56,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=292, Unknown=1, NotChecked=0, Total=342 [2021-04-16 07:13:56,426 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:57,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:57,027 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-04-16 07:13:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-04-16 07:13:57,028 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-04-16 07:13:57,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:57,029 INFO L225 Difference]: With dead ends: 28 [2021-04-16 07:13:57,029 INFO L226 Difference]: Without dead ends: 23 [2021-04-16 07:13:57,029 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 822.1ms TimeCoverageRelationStatistics Valid=124, Invalid=931, Unknown=1, NotChecked=0, Total=1056 [2021-04-16 07:13:57,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-04-16 07:13:57,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-04-16 07:13:57,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:57,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-04-16 07:13:57,036 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2021-04-16 07:13:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:57,036 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2021-04-16 07:13:57,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-04-16 07:13:57,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-16 07:13:57,037 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:57,037 INFO L519 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:57,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-16 07:13:57,037 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:57,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:57,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1975096521, now seen corresponding path program 10 times [2021-04-16 07:13:57,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:57,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216981772] [2021-04-16 07:13:57,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:57,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:57,043 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_100) InVars {main_~mid~0=v_main_~mid~0_100} OutVars{main_~mid~0=v_main_~mid~0_100} AuxVars[] AssignedVars[] [2021-04-16 07:13:57,044 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:57,045 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,047 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:57,049 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,049 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:57,051 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:57,053 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,055 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,057 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,058 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,060 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,062 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,063 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,065 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,066 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,067 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,068 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:13:57,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:57,081 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:57,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:57,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:57,106 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:57,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:57,113 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:13:57,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:57,120 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:57,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:57,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:57,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:57,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:57,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:57,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:57,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:57,155 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:13:57,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:13:57,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:57,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,176 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,196 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,202 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,228 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,237 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,268 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,275 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,313 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,317 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,352 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,354 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,391 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,394 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,436 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,437 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,479 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,482 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,527 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:13:57,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:57,529 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:13:57,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:13:57,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:13:57,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:57,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:57,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216981772] [2021-04-16 07:13:57,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:57,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-04-16 07:13:57,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413190331] [2021-04-16 07:13:57,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-04-16 07:13:57,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:57,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-04-16 07:13:57,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-04-16 07:13:57,583 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:58,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:13:58,539 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2021-04-16 07:13:58,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-16 07:13:58,539 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-04-16 07:13:58,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:13:58,540 INFO L225 Difference]: With dead ends: 29 [2021-04-16 07:13:58,540 INFO L226 Difference]: Without dead ends: 24 [2021-04-16 07:13:58,540 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1000.3ms TimeCoverageRelationStatistics Valid=132, Invalid=1058, Unknown=0, NotChecked=0, Total=1190 [2021-04-16 07:13:58,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-04-16 07:13:58,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-04-16 07:13:58,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:58,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-04-16 07:13:58,547 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2021-04-16 07:13:58,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:13:58,547 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-04-16 07:13:58,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:13:58,547 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-04-16 07:13:58,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-04-16 07:13:58,547 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:13:58,548 INFO L519 BasicCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:13:58,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-16 07:13:58,548 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:13:58,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:13:58,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1063954929, now seen corresponding path program 11 times [2021-04-16 07:13:58,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:13:58,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750589598] [2021-04-16 07:13:58,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:13:58,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:58,553 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_115) InVars {main_~mid~0=v_main_~mid~0_115} OutVars{main_~mid~0=v_main_~mid~0_115} AuxVars[] AssignedVars[] [2021-04-16 07:13:58,554 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:13:58,556 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,558 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,559 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,560 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,562 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,562 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,564 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,566 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:58,566 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:58,568 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,570 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,571 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:13:58,572 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,574 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,575 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,576 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:13:58,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:13:58,589 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:13:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:58,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:58,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:13:58,602 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:13:58,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:13:58,609 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:13:58,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:13:58,616 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:13:58,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:13:58,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:58,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:13:58,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:58,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:13:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:13:58,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:13:58,646 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:13:58,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-16 07:13:58,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-16 07:13:58,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:58,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,665 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,683 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,685 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,715 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,717 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,741 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,744 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,770 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,786 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,826 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,828 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,859 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,866 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,904 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,906 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,943 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,949 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:58,989 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:58,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:58,991 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:58,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:58,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:59,040 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:13:59,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:13:59,045 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:13:59,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:13:59,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:13:59,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:13:59,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:13:59,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750589598] [2021-04-16 07:13:59,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:13:59,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-16 07:13:59,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479570449] [2021-04-16 07:13:59,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-16 07:13:59,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:13:59,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-16 07:13:59,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2021-04-16 07:13:59,098 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:00,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:00,014 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-04-16 07:14:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-16 07:14:00,015 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-04-16 07:14:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:00,015 INFO L225 Difference]: With dead ends: 30 [2021-04-16 07:14:00,015 INFO L226 Difference]: Without dead ends: 25 [2021-04-16 07:14:00,016 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 990.0ms TimeCoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2021-04-16 07:14:00,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-04-16 07:14:00,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-04-16 07:14:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:00,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-04-16 07:14:00,022 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2021-04-16 07:14:00,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:00,022 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-04-16 07:14:00,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:00,022 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-04-16 07:14:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-16 07:14:00,023 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:00,023 INFO L519 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:00,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-16 07:14:00,023 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:00,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:00,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1411630647, now seen corresponding path program 12 times [2021-04-16 07:14:00,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:00,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323895597] [2021-04-16 07:14:00,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:00,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:00,028 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_131) InVars {main_~mid~0=v_main_~mid~0_131} OutVars{main_~mid~0=v_main_~mid~0_131} AuxVars[] AssignedVars[] [2021-04-16 07:14:00,029 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:00,033 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,036 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:00,037 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,038 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:00,040 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,042 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,043 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,045 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:00,046 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,049 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,051 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,052 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,054 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,055 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,057 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,057 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:00,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:00,072 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:00,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:00,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:00,086 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:00,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:00,093 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-16 07:14:00,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:00,106 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:00,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:00,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:00,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:00,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:00,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:00,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:00,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:00,140 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-04-16 07:14:00,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:00,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 07:14:00,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:14:00,157 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-04-16 07:14:00,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:00,173 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,173 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:00,363 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,364 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:00,380 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,381 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:00,398 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:00,417 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,418 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:00,437 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,437 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:00,457 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,458 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:00,479 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,480 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:00,500 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:00,521 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:00,546 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:00,547 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:00,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:00,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:00,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323895597] [2021-04-16 07:14:00,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:00,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-04-16 07:14:00,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535728480] [2021-04-16 07:14:00,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-04-16 07:14:00,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:00,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-04-16 07:14:00,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=403, Unknown=1, NotChecked=0, Total=462 [2021-04-16 07:14:00,570 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:01,552 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-04-16 07:14:01,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-16 07:14:01,552 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-04-16 07:14:01,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:01,553 INFO L225 Difference]: With dead ends: 31 [2021-04-16 07:14:01,553 INFO L226 Difference]: Without dead ends: 26 [2021-04-16 07:14:01,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 941.4ms TimeCoverageRelationStatistics Valid=148, Invalid=1333, Unknown=1, NotChecked=0, Total=1482 [2021-04-16 07:14:01,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-04-16 07:14:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-04-16 07:14:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-04-16 07:14:01,561 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2021-04-16 07:14:01,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:01,562 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-04-16 07:14:01,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:01,562 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-04-16 07:14:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-04-16 07:14:01,562 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:01,562 INFO L519 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:01,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-16 07:14:01,562 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:01,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:01,563 INFO L82 PathProgramCache]: Analyzing trace with hash 845372175, now seen corresponding path program 13 times [2021-04-16 07:14:01,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:01,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574664476] [2021-04-16 07:14:01,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:01,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:01,567 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_148) InVars {main_~mid~0=v_main_~mid~0_148} OutVars{main_~mid~0=v_main_~mid~0_148} AuxVars[] AssignedVars[] [2021-04-16 07:14:01,568 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:01,570 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,572 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,573 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,574 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,576 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,577 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,579 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:01,581 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,581 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:01,583 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,585 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,586 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,588 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,589 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:01,591 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,591 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:01,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:01,605 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:01,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:01,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:01,617 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:01,625 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:14:01,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:01,632 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:01,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:01,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:01,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:01,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:01,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:01,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:01,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:01,665 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:14:01,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:14:01,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:01,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:01,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,691 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:01,713 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:01,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,715 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:01,737 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:01,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,740 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:01,766 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:01,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,768 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:01,796 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:01,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,798 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:01,833 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:01,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,835 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:01,882 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:01,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,883 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:01,926 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:01,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,928 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:01,968 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:01,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:01,969 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:01,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:01,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:02,017 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:02,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:02,019 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:02,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:02,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:02,073 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:02,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:02,078 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:02,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:02,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:02,144 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:02,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:02,148 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:02,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:02,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:02,198 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:02,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:02,200 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:02,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:02,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:02,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:02,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:02,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574664476] [2021-04-16 07:14:02,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:02,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-04-16 07:14:02,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33382892] [2021-04-16 07:14:02,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-04-16 07:14:02,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:02,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-04-16 07:14:02,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-04-16 07:14:02,255 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:03,385 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2021-04-16 07:14:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-16 07:14:03,386 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.05) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-04-16 07:14:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:03,386 INFO L225 Difference]: With dead ends: 32 [2021-04-16 07:14:03,386 INFO L226 Difference]: Without dead ends: 27 [2021-04-16 07:14:03,387 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1263.8ms TimeCoverageRelationStatistics Valid=156, Invalid=1484, Unknown=0, NotChecked=0, Total=1640 [2021-04-16 07:14:03,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-04-16 07:14:03,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-04-16 07:14:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-04-16 07:14:03,395 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2021-04-16 07:14:03,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:03,395 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-04-16 07:14:03,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 20 states have (on average 1.05) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:03,395 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-04-16 07:14:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-04-16 07:14:03,395 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:03,395 INFO L519 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:03,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-16 07:14:03,395 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:03,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:03,396 INFO L82 PathProgramCache]: Analyzing trace with hash 471228727, now seen corresponding path program 14 times [2021-04-16 07:14:03,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:03,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705982870] [2021-04-16 07:14:03,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:03,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:03,403 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_166) InVars {main_~mid~0=v_main_~mid~0_166} OutVars{main_~mid~0=v_main_~mid~0_166} AuxVars[] AssignedVars[] [2021-04-16 07:14:03,404 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:03,406 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,407 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,409 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,410 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,412 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,412 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,414 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,416 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:03,417 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:03,418 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:03,421 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,423 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,425 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,426 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,428 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,428 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:14:03,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,452 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:03,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:03,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:03,465 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:03,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:03,472 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:14:03,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:03,479 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:03,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:03,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:03,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:03,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:03,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:03,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:03,525 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:03,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:14:03,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:14:03,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:03,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,544 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,570 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,571 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,591 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,592 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,615 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,616 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,644 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,645 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,673 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,674 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,712 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,714 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,749 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,750 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,785 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,786 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,824 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,826 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,868 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,869 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,912 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,913 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:03,960 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:03,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:03,961 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:03,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:03,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:04,008 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:04,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:04,009 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:04,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:04,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:04,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:04,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:04,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705982870] [2021-04-16 07:14:04,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:04,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-04-16 07:14:04,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012903033] [2021-04-16 07:14:04,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-04-16 07:14:04,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:04,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-04-16 07:14:04,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-04-16 07:14:04,060 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:05,191 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-04-16 07:14:05,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-16 07:14:05,192 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-04-16 07:14:05,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:05,192 INFO L225 Difference]: With dead ends: 33 [2021-04-16 07:14:05,192 INFO L226 Difference]: Without dead ends: 28 [2021-04-16 07:14:05,193 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1255.8ms TimeCoverageRelationStatistics Valid=164, Invalid=1642, Unknown=0, NotChecked=0, Total=1806 [2021-04-16 07:14:05,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-04-16 07:14:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-04-16 07:14:05,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2021-04-16 07:14:05,200 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2021-04-16 07:14:05,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:05,200 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2021-04-16 07:14:05,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:05,200 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2021-04-16 07:14:05,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-04-16 07:14:05,201 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:05,201 INFO L519 BasicCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:05,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-16 07:14:05,201 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:05,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:05,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1757683727, now seen corresponding path program 15 times [2021-04-16 07:14:05,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:05,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755957028] [2021-04-16 07:14:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:05,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:05,212 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_185) InVars {main_~mid~0=v_main_~mid~0_185} OutVars{main_~mid~0=v_main_~mid~0_185} AuxVars[] AssignedVars[] [2021-04-16 07:14:05,213 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:05,214 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,216 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:05,218 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,218 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:05,220 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:05,222 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,224 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,226 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,227 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,229 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,231 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,232 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,234 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,235 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,237 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,237 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:05,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,251 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:05,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:05,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:05,264 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:05,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:05,271 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:14:05,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:05,284 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:14:05,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:05,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:05,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:05,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:05,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:05,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:05,319 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:05,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:14:05,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:14:05,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,338 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,356 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,358 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,381 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,382 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,407 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,408 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,449 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,451 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,480 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,482 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,512 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,514 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,547 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,549 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,592 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,593 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,634 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,635 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,682 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,688 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,740 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,743 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,796 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,797 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,846 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,848 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,900 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:05,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:05,902 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:05,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:05,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:05,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:05,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755957028] [2021-04-16 07:14:05,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:05,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-04-16 07:14:05,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300451935] [2021-04-16 07:14:05,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-04-16 07:14:05,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:05,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-04-16 07:14:05,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-04-16 07:14:05,966 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:07,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:07,237 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-04-16 07:14:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-16 07:14:07,238 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-04-16 07:14:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:07,238 INFO L225 Difference]: With dead ends: 34 [2021-04-16 07:14:07,238 INFO L226 Difference]: Without dead ends: 29 [2021-04-16 07:14:07,239 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1437.8ms TimeCoverageRelationStatistics Valid=172, Invalid=1808, Unknown=0, NotChecked=0, Total=1980 [2021-04-16 07:14:07,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-04-16 07:14:07,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-04-16 07:14:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:07,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-04-16 07:14:07,248 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2021-04-16 07:14:07,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:07,248 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-04-16 07:14:07,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-04-16 07:14:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-04-16 07:14:07,248 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:07,248 INFO L519 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:07,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-16 07:14:07,248 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:07,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:07,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1311884233, now seen corresponding path program 16 times [2021-04-16 07:14:07,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:07,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602222366] [2021-04-16 07:14:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:07,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:07,259 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_205) InVars {main_~mid~0=v_main_~mid~0_205} OutVars{main_~mid~0=v_main_~mid~0_205} AuxVars[] AssignedVars[] [2021-04-16 07:14:07,260 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:07,262 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,264 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,265 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,266 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,268 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,269 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,272 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:07,273 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,273 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:07,275 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:07,277 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,279 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,280 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,282 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,284 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,285 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:07,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:07,299 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:07,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:07,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:07,315 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:07,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:07,322 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:14:07,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:07,336 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:14:07,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:07,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:07,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:07,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:07,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:07,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:07,369 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:07,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:14:07,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:07,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:07,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,392 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,412 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,414 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,436 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,438 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,463 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,465 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,493 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,494 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,532 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,533 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,567 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,569 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,606 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,645 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,647 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,691 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,742 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,743 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,791 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,792 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,846 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,848 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,905 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,906 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:07,964 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:07,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:07,965 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:07,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:07,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:08,028 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:08,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:08,037 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:08,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:08,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:08,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:08,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:08,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602222366] [2021-04-16 07:14:08,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:08,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-04-16 07:14:08,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600841274] [2021-04-16 07:14:08,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-04-16 07:14:08,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:08,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-04-16 07:14:08,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2021-04-16 07:14:08,102 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:09,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:09,649 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-04-16 07:14:09,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-04-16 07:14:09,650 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-04-16 07:14:09,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:09,650 INFO L225 Difference]: With dead ends: 35 [2021-04-16 07:14:09,650 INFO L226 Difference]: Without dead ends: 30 [2021-04-16 07:14:09,651 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1692.5ms TimeCoverageRelationStatistics Valid=180, Invalid=1982, Unknown=0, NotChecked=0, Total=2162 [2021-04-16 07:14:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-04-16 07:14:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-04-16 07:14:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-04-16 07:14:09,660 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2021-04-16 07:14:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:09,660 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-04-16 07:14:09,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-04-16 07:14:09,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-04-16 07:14:09,661 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:09,661 INFO L519 BasicCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:09,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-16 07:14:09,661 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:09,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:09,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1979210481, now seen corresponding path program 17 times [2021-04-16 07:14:09,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:09,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174795093] [2021-04-16 07:14:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:09,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:09,668 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_226) InVars {main_~mid~0=v_main_~mid~0_226} OutVars{main_~mid~0=v_main_~mid~0_226} AuxVars[] AssignedVars[] [2021-04-16 07:14:09,669 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:09,669 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,679 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:09,681 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,681 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:09,683 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,685 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,686 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,687 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,689 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:09,691 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,692 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,693 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,694 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,696 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,697 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,697 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:09,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:09,710 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:09,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:09,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:09,744 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:09,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:09,751 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:14:09,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:09,764 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:09,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:09,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:09,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:09,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:09,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:09,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:09,800 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-04-16 07:14:09,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:09,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:09,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 07:14:09,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:14:09,818 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-04-16 07:14:09,818 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:09,831 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:09,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,021 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,037 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,053 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,076 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,094 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,094 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:10,113 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,133 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,153 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,175 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,197 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,198 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:10,220 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,246 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,247 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:10,272 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,273 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:10,298 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,325 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:10,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:10,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:10,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:10,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174795093] [2021-04-16 07:14:10,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:10,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-04-16 07:14:10,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944636583] [2021-04-16 07:14:10,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-04-16 07:14:10,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:10,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-04-16 07:14:10,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=628, Unknown=1, NotChecked=0, Total=702 [2021-04-16 07:14:10,355 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:11,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:11,269 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-04-16 07:14:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-16 07:14:11,269 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-04-16 07:14:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:11,270 INFO L225 Difference]: With dead ends: 36 [2021-04-16 07:14:11,270 INFO L226 Difference]: Without dead ends: 31 [2021-04-16 07:14:11,270 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1199.7ms TimeCoverageRelationStatistics Valid=188, Invalid=2163, Unknown=1, NotChecked=0, Total=2352 [2021-04-16 07:14:11,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-04-16 07:14:11,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-04-16 07:14:11,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-04-16 07:14:11,281 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2021-04-16 07:14:11,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:11,281 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-04-16 07:14:11,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-04-16 07:14:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-04-16 07:14:11,282 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:11,282 INFO L519 BasicCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:11,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-16 07:14:11,282 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:11,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:11,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1191487689, now seen corresponding path program 18 times [2021-04-16 07:14:11,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:11,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520264133] [2021-04-16 07:14:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:11,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:11,289 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_248) InVars {main_~mid~0=v_main_~mid~0_248} OutVars{main_~mid~0=v_main_~mid~0_248} AuxVars[] AssignedVars[] [2021-04-16 07:14:11,290 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:11,292 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,294 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,295 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,297 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,298 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,299 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,301 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:11,303 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,303 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:11,305 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:11,307 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,308 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,310 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,311 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,313 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,313 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:11,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,327 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:11,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:11,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:11,348 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:11,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:11,355 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:14:11,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:11,362 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:11,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:11,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:11,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:11,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:11,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:11,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:11,402 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:11,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:14:11,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:14:11,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:11,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,423 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,442 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,443 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,464 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,466 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,491 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,492 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,521 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,522 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,550 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,552 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,583 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,584 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,618 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,620 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,655 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,657 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,702 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,703 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,748 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,749 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,796 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,797 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,844 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,845 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,894 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,905 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:11,956 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:11,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:11,958 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:11,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:11,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:12,015 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:12,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:12,016 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:12,074 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:12,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:12,076 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:12,136 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:12,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:12,137 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:12,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:12,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:12,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:12,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:12,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520264133] [2021-04-16 07:14:12,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:12,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-16 07:14:12,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629179187] [2021-04-16 07:14:12,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-16 07:14:12,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:12,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-16 07:14:12,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-04-16 07:14:12,203 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:13,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:13,870 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-04-16 07:14:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-04-16 07:14:13,871 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-04-16 07:14:13,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:13,871 INFO L225 Difference]: With dead ends: 37 [2021-04-16 07:14:13,871 INFO L226 Difference]: Without dead ends: 32 [2021-04-16 07:14:13,872 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1843.6ms TimeCoverageRelationStatistics Valid=196, Invalid=2354, Unknown=0, NotChecked=0, Total=2550 [2021-04-16 07:14:13,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-04-16 07:14:13,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-04-16 07:14:13,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:13,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-04-16 07:14:13,882 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2021-04-16 07:14:13,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:13,882 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-04-16 07:14:13,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:13,882 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-04-16 07:14:13,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-04-16 07:14:13,882 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:13,882 INFO L519 BasicCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:13,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-04-16 07:14:13,883 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:13,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:13,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1753082383, now seen corresponding path program 19 times [2021-04-16 07:14:13,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:13,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351865429] [2021-04-16 07:14:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:13,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:13,889 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_271) InVars {main_~mid~0=v_main_~mid~0_271} OutVars{main_~mid~0=v_main_~mid~0_271} AuxVars[] AssignedVars[] [2021-04-16 07:14:13,890 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:13,892 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,894 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,896 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,897 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,899 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,899 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,901 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,904 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:13,904 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:13,906 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:13,908 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,910 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,911 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,913 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,915 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,915 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:14:13,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:13,931 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:13,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:13,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:13,943 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:13,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:13,950 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:14:13,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:13,964 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:13,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:13,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:13,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:13,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:13,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:13,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:14,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:14,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:14,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:14,004 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-04-16 07:14:14,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:14,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:14,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:14:14,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:14,021 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-04-16 07:14:14,022 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,035 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,035 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,232 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,233 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,247 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,248 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,263 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:14,281 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,282 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,299 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,300 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,320 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:14,344 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:14,365 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,365 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,393 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:14,417 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,418 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,441 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,442 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,466 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:14,492 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,493 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,519 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:14,547 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,548 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,576 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:14,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:14,606 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:14,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:14,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:14,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351865429] [2021-04-16 07:14:14,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:14,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-04-16 07:14:14,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292587903] [2021-04-16 07:14:14,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-04-16 07:14:14,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:14,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-04-16 07:14:14,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=732, Unknown=1, NotChecked=0, Total=812 [2021-04-16 07:14:14,636 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:15,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:15,905 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2021-04-16 07:14:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-16 07:14:15,905 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-04-16 07:14:15,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:15,906 INFO L225 Difference]: With dead ends: 38 [2021-04-16 07:14:15,906 INFO L226 Difference]: Without dead ends: 33 [2021-04-16 07:14:15,906 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1530.3ms TimeCoverageRelationStatistics Valid=204, Invalid=2551, Unknown=1, NotChecked=0, Total=2756 [2021-04-16 07:14:15,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-04-16 07:14:15,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-04-16 07:14:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:15,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-04-16 07:14:15,917 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2021-04-16 07:14:15,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:15,917 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-04-16 07:14:15,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:15,918 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-04-16 07:14:15,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-04-16 07:14:15,918 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:15,918 INFO L519 BasicCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:15,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-04-16 07:14:15,918 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:15,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:15,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1454525897, now seen corresponding path program 20 times [2021-04-16 07:14:15,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:15,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286074962] [2021-04-16 07:14:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:15,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:15,927 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_295) InVars {main_~mid~0=v_main_~mid~0_295} OutVars{main_~mid~0=v_main_~mid~0_295} AuxVars[] AssignedVars[] [2021-04-16 07:14:15,928 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:15,930 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,932 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,933 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,935 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,937 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,937 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,939 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:15,941 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,941 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:15,943 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:15,945 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,946 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,948 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,950 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,952 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,952 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:14:15,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:15,966 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:15,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:15,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:15,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:15,980 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:15,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:15,988 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-16 07:14:15,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:16,001 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:16,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:16,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:16,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:16,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:16,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:16,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:16,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:16,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:16,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:16,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:16,042 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-04-16 07:14:16,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:16,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:16,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:14:16,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:16,059 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-04-16 07:14:16,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,073 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,271 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,287 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,302 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,319 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,337 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,338 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:16,356 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,376 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,377 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:16,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,419 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,442 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,466 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,466 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:16,493 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,494 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:16,520 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,546 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,547 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:16,577 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:16,606 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,607 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:16,635 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,636 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:16,666 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:16,667 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:16,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:16,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:16,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286074962] [2021-04-16 07:14:16,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:16,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-16 07:14:16,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6840221] [2021-04-16 07:14:16,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-16 07:14:16,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:16,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-16 07:14:16,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=787, Unknown=1, NotChecked=0, Total=870 [2021-04-16 07:14:16,699 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:18,168 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2021-04-16 07:14:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-04-16 07:14:18,169 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-04-16 07:14:18,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:18,169 INFO L225 Difference]: With dead ends: 39 [2021-04-16 07:14:18,169 INFO L226 Difference]: Without dead ends: 34 [2021-04-16 07:14:18,170 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 1487.0ms TimeCoverageRelationStatistics Valid=212, Invalid=2757, Unknown=1, NotChecked=0, Total=2970 [2021-04-16 07:14:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-04-16 07:14:18,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-04-16 07:14:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2021-04-16 07:14:18,180 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2021-04-16 07:14:18,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:18,180 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2021-04-16 07:14:18,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2021-04-16 07:14:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-04-16 07:14:18,180 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:18,180 INFO L519 BasicCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:18,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-04-16 07:14:18,180 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:18,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:18,180 INFO L82 PathProgramCache]: Analyzing trace with hash -2106134769, now seen corresponding path program 21 times [2021-04-16 07:14:18,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:18,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312753830] [2021-04-16 07:14:18,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:18,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:18,190 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_320) InVars {main_~mid~0=v_main_~mid~0_320} OutVars{main_~mid~0=v_main_~mid~0_320} AuxVars[] AssignedVars[] [2021-04-16 07:14:18,191 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:18,191 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,194 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:18,196 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,196 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:18,198 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:18,200 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,202 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,203 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,205 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,207 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,217 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,218 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,220 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,221 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,223 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,223 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:18,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:18,239 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:18,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:18,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:18,251 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:18,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:18,260 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:14:18,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:18,276 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:14:18,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:18,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:18,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:18,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:18,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:18,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:18,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:18,319 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:18,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:14:18,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:18,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:18,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,345 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,366 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,367 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,407 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,408 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,433 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,435 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,466 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,469 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,504 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,505 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,540 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,541 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,578 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,619 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,620 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,662 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,663 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,709 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,710 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,760 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,761 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,813 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,815 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,872 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,874 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,932 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:18,933 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:18,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:18,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:18,997 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:18,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:19,002 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:19,071 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:19,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:19,072 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:19,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:19,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:19,138 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:19,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:19,139 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:19,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:19,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:19,209 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:19,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:19,210 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:19,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:19,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:19,282 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:19,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:19,283 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:19,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:19,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:19,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:19,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:19,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:19,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:19,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:19,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:19,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:19,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312753830] [2021-04-16 07:14:19,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:19,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-04-16 07:14:19,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923232635] [2021-04-16 07:14:19,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-04-16 07:14:19,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:19,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-04-16 07:14:19,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2021-04-16 07:14:19,444 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:21,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:21,696 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2021-04-16 07:14:21,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-16 07:14:21,697 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-04-16 07:14:21,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:21,697 INFO L225 Difference]: With dead ends: 40 [2021-04-16 07:14:21,697 INFO L226 Difference]: Without dead ends: 35 [2021-04-16 07:14:21,698 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2491.6ms TimeCoverageRelationStatistics Valid=220, Invalid=2972, Unknown=0, NotChecked=0, Total=3192 [2021-04-16 07:14:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-04-16 07:14:21,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-04-16 07:14:21,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-04-16 07:14:21,709 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2021-04-16 07:14:21,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:21,710 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2021-04-16 07:14:21,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:21,710 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-04-16 07:14:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-04-16 07:14:21,710 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:21,710 INFO L519 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:21,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-04-16 07:14:21,710 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:21,710 INFO L82 PathProgramCache]: Analyzing trace with hash -831173321, now seen corresponding path program 22 times [2021-04-16 07:14:21,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:21,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401646703] [2021-04-16 07:14:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:21,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:21,715 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_346) InVars {main_~mid~0=v_main_~mid~0_346} OutVars{main_~mid~0=v_main_~mid~0_346} AuxVars[] AssignedVars[] [2021-04-16 07:14:21,716 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:21,718 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,720 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,721 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,722 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,728 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,729 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,731 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:21,733 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,733 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:21,735 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:21,737 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,738 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,740 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,741 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,743 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,743 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:21,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:21,757 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:21,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:21,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:21,768 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:21,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:21,776 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:14:21,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:21,790 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:21,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:21,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:21,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:21,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:21,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:21,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:21,830 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-04-16 07:14:21,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:21,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:21,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:14:21,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:21,849 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-04-16 07:14:21,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:21,862 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:21,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,057 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,058 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,073 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,089 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,107 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,108 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,126 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,127 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,146 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,146 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,166 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,167 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,187 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,209 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,210 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,232 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,255 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,256 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,280 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,305 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,336 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,364 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,393 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,393 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,424 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,424 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,455 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,456 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,487 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,487 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:22,519 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:22,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:22,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:22,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:22,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401646703] [2021-04-16 07:14:22,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:22,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-04-16 07:14:22,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235741559] [2021-04-16 07:14:22,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-04-16 07:14:22,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:22,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-04-16 07:14:22,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=903, Unknown=1, NotChecked=0, Total=992 [2021-04-16 07:14:22,554 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:24,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:24,194 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-04-16 07:14:24,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-16 07:14:24,194 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-04-16 07:14:24,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:24,194 INFO L225 Difference]: With dead ends: 41 [2021-04-16 07:14:24,194 INFO L226 Difference]: Without dead ends: 36 [2021-04-16 07:14:24,195 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1976.7ms TimeCoverageRelationStatistics Valid=228, Invalid=3192, Unknown=2, NotChecked=0, Total=3422 [2021-04-16 07:14:24,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-04-16 07:14:24,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-04-16 07:14:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-04-16 07:14:24,206 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2021-04-16 07:14:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:24,206 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-04-16 07:14:24,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:24,207 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-04-16 07:14:24,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-04-16 07:14:24,207 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:24,207 INFO L519 BasicCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:24,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-04-16 07:14:24,207 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:24,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash 37925903, now seen corresponding path program 23 times [2021-04-16 07:14:24,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:24,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135028497] [2021-04-16 07:14:24,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:24,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:24,211 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_373) InVars {main_~mid~0=v_main_~mid~0_373} OutVars{main_~mid~0=v_main_~mid~0_373} AuxVars[] AssignedVars[] [2021-04-16 07:14:24,218 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:24,220 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,222 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,223 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,225 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,226 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,226 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,228 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,231 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:24,231 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:24,232 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:24,234 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,236 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,238 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,239 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,241 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,242 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:24,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:24,257 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:24,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:24,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:24,272 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:24,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:24,279 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:14:24,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:24,287 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:24,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:24,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:24,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:24,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:24,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:24,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:24,326 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:24,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:14:24,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:24,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:24,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,348 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,370 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,371 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,398 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,425 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,427 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,459 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,460 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,494 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,496 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,533 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,534 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,575 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,585 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,629 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,630 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,679 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,680 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,730 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,733 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,782 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,784 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,837 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,838 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,896 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,897 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:24,957 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:24,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:24,958 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:24,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:24,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,030 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:25,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:25,031 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:25,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:25,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,095 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:25,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:25,097 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:25,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:25,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,165 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:25,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:25,167 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:25,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:25,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,237 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:25,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:25,238 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:25,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:25,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,317 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:25,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:25,327 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:25,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:25,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,402 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:25,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:25,403 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:25,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:25,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,481 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:25,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:25,483 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:25,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:25,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,563 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:25,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:25,564 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:25,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:25,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:25,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:25,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:25,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135028497] [2021-04-16 07:14:25,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:25,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-04-16 07:14:25,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055838044] [2021-04-16 07:14:25,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-04-16 07:14:25,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:25,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-04-16 07:14:25,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-04-16 07:14:25,651 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:28,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:28,216 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-04-16 07:14:28,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-16 07:14:28,217 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-04-16 07:14:28,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:28,217 INFO L225 Difference]: With dead ends: 42 [2021-04-16 07:14:28,217 INFO L226 Difference]: Without dead ends: 37 [2021-04-16 07:14:28,218 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 2867.9ms TimeCoverageRelationStatistics Valid=236, Invalid=3424, Unknown=0, NotChecked=0, Total=3660 [2021-04-16 07:14:28,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-04-16 07:14:28,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-04-16 07:14:28,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.03125) internal successors, (33), 32 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:28,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2021-04-16 07:14:28,233 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2021-04-16 07:14:28,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:28,233 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2021-04-16 07:14:28,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:28,233 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2021-04-16 07:14:28,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-16 07:14:28,233 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:28,233 INFO L519 BasicCegarLoop]: trace histogram [24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:28,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-04-16 07:14:28,234 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:28,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:28,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1210198071, now seen corresponding path program 24 times [2021-04-16 07:14:28,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:28,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610910811] [2021-04-16 07:14:28,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:28,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:28,239 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_401) InVars {main_~mid~0=v_main_~mid~0_401} OutVars{main_~mid~0=v_main_~mid~0_401} AuxVars[] AssignedVars[] [2021-04-16 07:14:28,241 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:28,243 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,245 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,246 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,248 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,249 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,250 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,252 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,254 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:28,255 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:28,256 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:28,258 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,260 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,261 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,263 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,265 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,265 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:28,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:28,279 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:28,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:28,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:28,304 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:28,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:28,310 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-16 07:14:28,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:28,324 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:28,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:28,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:28,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:28,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:28,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:28,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:28,355 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-04-16 07:14:28,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:28,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:28,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:14:28,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:28,373 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-04-16 07:14:28,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,387 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,388 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,584 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,600 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,601 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,617 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,617 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,634 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,635 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,652 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,671 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,691 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,712 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,735 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,736 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,758 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,759 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,782 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,783 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,810 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,837 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,864 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,891 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,892 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,920 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:28,949 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,950 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:28,980 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:28,981 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:29,012 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:29,013 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:29,046 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:29,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:29,079 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:29,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:29,114 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:29,115 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:29,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:29,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:29,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610910811] [2021-04-16 07:14:29,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:29,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-04-16 07:14:29,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644182957] [2021-04-16 07:14:29,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-04-16 07:14:29,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:29,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-04-16 07:14:29,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1027, Unknown=1, NotChecked=0, Total=1122 [2021-04-16 07:14:29,150 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 32 states, 31 states have (on average 1.032258064516129) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:30,585 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2021-04-16 07:14:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-16 07:14:30,586 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.032258064516129) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-04-16 07:14:30,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:30,586 INFO L225 Difference]: With dead ends: 43 [2021-04-16 07:14:30,586 INFO L226 Difference]: Without dead ends: 38 [2021-04-16 07:14:30,588 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1774.2ms TimeCoverageRelationStatistics Valid=244, Invalid=3661, Unknown=1, NotChecked=0, Total=3906 [2021-04-16 07:14:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-04-16 07:14:30,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-04-16 07:14:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-04-16 07:14:30,600 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2021-04-16 07:14:30,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:30,601 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-04-16 07:14:30,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 1.032258064516129) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:30,601 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-04-16 07:14:30,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-04-16 07:14:30,601 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:30,601 INFO L519 BasicCegarLoop]: trace histogram [25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:30,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-04-16 07:14:30,601 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:30,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1104070385, now seen corresponding path program 25 times [2021-04-16 07:14:30,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:30,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193504778] [2021-04-16 07:14:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:30,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:30,607 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_430) InVars {main_~mid~0=v_main_~mid~0_430} OutVars{main_~mid~0=v_main_~mid~0_430} AuxVars[] AssignedVars[] [2021-04-16 07:14:30,608 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:30,609 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,611 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,613 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:30,614 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:30,615 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:30,617 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,619 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,621 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,623 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,625 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,627 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,628 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,630 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,631 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,633 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,633 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:30,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:30,648 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:30,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:30,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:30,668 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:30,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:30,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:14:30,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:30,697 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:14:30,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:30,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:30,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:30,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:30,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:30,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:30,738 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:30,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:14:30,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:30,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:30,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,761 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:30,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:30,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:30,781 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:30,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,782 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:30,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:30,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:30,805 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:30,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,806 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:30,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:30,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:30,832 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:30,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,834 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:30,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:30,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:30,862 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:30,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,864 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:30,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:30,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:30,895 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:30,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,896 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:30,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:30,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:30,931 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:30,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,932 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:30,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:30,976 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:30,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:30,978 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:30,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:30,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,025 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,026 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,070 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,071 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,118 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,119 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,171 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,172 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,223 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,284 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,285 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,343 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,344 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,404 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,406 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,470 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,471 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,538 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,539 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,608 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,609 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,681 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,683 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,756 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,838 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,839 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:31,921 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:31,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:31,922 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:31,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:31,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:32,005 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:32,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:32,006 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:32,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:32,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:32,093 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:32,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:32,095 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:32,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:32,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:32,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:32,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:32,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193504778] [2021-04-16 07:14:32,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:32,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-04-16 07:14:32,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220190680] [2021-04-16 07:14:32,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-04-16 07:14:32,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:32,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-04-16 07:14:32,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2021-04-16 07:14:32,189 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand has 33 states, 32 states have (on average 1.03125) internal successors, (33), 31 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:35,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:35,200 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2021-04-16 07:14:35,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-16 07:14:35,201 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.03125) internal successors, (33), 31 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-04-16 07:14:35,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:35,201 INFO L225 Difference]: With dead ends: 44 [2021-04-16 07:14:35,201 INFO L226 Difference]: Without dead ends: 39 [2021-04-16 07:14:35,202 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 3287.1ms TimeCoverageRelationStatistics Valid=252, Invalid=3908, Unknown=0, NotChecked=0, Total=4160 [2021-04-16 07:14:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-04-16 07:14:35,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-04-16 07:14:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:35,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2021-04-16 07:14:35,216 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2021-04-16 07:14:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:35,216 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2021-04-16 07:14:35,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 32 states have (on average 1.03125) internal successors, (33), 31 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:35,216 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2021-04-16 07:14:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-04-16 07:14:35,216 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:35,216 INFO L519 BasicCegarLoop]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:35,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-04-16 07:14:35,216 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:35,216 INFO L82 PathProgramCache]: Analyzing trace with hash 168051511, now seen corresponding path program 26 times [2021-04-16 07:14:35,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:35,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347140361] [2021-04-16 07:14:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:35,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:35,221 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_460) InVars {main_~mid~0=v_main_~mid~0_460} OutVars{main_~mid~0=v_main_~mid~0_460} AuxVars[] AssignedVars[] [2021-04-16 07:14:35,225 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:35,227 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,229 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,233 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,238 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,239 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,240 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,242 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,244 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:35,244 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:35,246 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,248 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:35,249 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,251 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,253 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,254 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,255 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:14:35,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:35,270 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:35,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:35,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:35,288 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:35,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:35,295 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:14:35,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:35,303 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:35,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:35,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:35,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:35,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:35,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:35,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:35,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:35,350 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:14:35,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:14:35,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:35,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:35,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,371 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,393 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,394 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,420 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,421 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,448 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,449 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,477 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,478 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,509 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,545 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,546 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,588 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,590 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,631 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,636 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,680 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,682 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,728 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,729 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,779 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,780 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,832 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,833 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,888 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,889 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:35,947 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:35,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:35,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:35,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:35,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,009 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,010 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,073 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,075 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,144 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,146 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,229 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,231 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,311 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,313 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,391 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,393 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,472 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,473 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,558 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,646 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,647 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,738 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,739 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,830 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:14:36,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:36,831 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:14:36,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:14:36,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:14:36,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:36,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:36,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347140361] [2021-04-16 07:14:36,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:36,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-04-16 07:14:36,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126650225] [2021-04-16 07:14:36,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-04-16 07:14:36,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:36,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-04-16 07:14:36,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1160, Unknown=0, NotChecked=0, Total=1260 [2021-04-16 07:14:36,925 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand has 34 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 32 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:40,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:40,184 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2021-04-16 07:14:40,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-16 07:14:40,185 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 32 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-04-16 07:14:40,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:40,185 INFO L225 Difference]: With dead ends: 45 [2021-04-16 07:14:40,185 INFO L226 Difference]: Without dead ends: 40 [2021-04-16 07:14:40,186 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 3520.5ms TimeCoverageRelationStatistics Valid=260, Invalid=4162, Unknown=0, NotChecked=0, Total=4422 [2021-04-16 07:14:40,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-04-16 07:14:40,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-04-16 07:14:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-04-16 07:14:40,201 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2021-04-16 07:14:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:40,201 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-04-16 07:14:40,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 32 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-04-16 07:14:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-04-16 07:14:40,202 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:40,202 INFO L519 BasicCegarLoop]: trace histogram [27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:40,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-04-16 07:14:40,202 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:40,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:40,202 INFO L82 PathProgramCache]: Analyzing trace with hash 949124623, now seen corresponding path program 27 times [2021-04-16 07:14:40,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:40,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1743682679] [2021-04-16 07:14:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:40,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:40,207 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_491) InVars {main_~mid~0=v_main_~mid~0_491} OutVars{main_~mid~0=v_main_~mid~0_491} AuxVars[] AssignedVars[] [2021-04-16 07:14:40,208 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:40,210 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,212 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,213 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,215 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,217 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,217 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,219 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,222 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:40,222 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:40,224 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:40,226 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,228 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,229 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,231 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,233 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,233 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:40,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:40,252 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:40,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:40,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:40,263 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:40,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:40,271 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:14:40,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:40,279 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:40,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:40,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:40,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:40,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:40,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:40,320 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:40,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:14:40,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:40,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:40,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,387 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,388 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,415 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,416 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,446 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,447 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,480 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,481 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,518 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,519 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,558 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,559 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,602 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,605 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,652 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,653 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,703 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,704 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,754 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,763 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,819 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,820 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,878 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,879 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:40,940 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:40,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:40,941 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:40,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:40,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,023 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,024 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,092 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,093 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,163 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,165 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,238 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,239 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,315 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,316 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,394 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,479 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,566 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,567 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,659 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,661 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,754 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,755 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,851 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,852 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:41,948 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:14:41,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:41,949 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:14:41,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:14:41,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:14:42,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:42,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:42,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1743682679] [2021-04-16 07:14:42,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:42,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-04-16 07:14:42,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234059364] [2021-04-16 07:14:42,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-04-16 07:14:42,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:42,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-04-16 07:14:42,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2021-04-16 07:14:42,050 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 33 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:45,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:45,615 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-04-16 07:14:45,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-16 07:14:45,616 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 33 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-04-16 07:14:45,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:45,616 INFO L225 Difference]: With dead ends: 46 [2021-04-16 07:14:45,616 INFO L226 Difference]: Without dead ends: 41 [2021-04-16 07:14:45,617 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 3846.9ms TimeCoverageRelationStatistics Valid=268, Invalid=4424, Unknown=0, NotChecked=0, Total=4692 [2021-04-16 07:14:45,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-04-16 07:14:45,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-04-16 07:14:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-04-16 07:14:45,633 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2021-04-16 07:14:45,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:45,633 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-04-16 07:14:45,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 33 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-04-16 07:14:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-04-16 07:14:45,634 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:45,634 INFO L519 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:45,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-04-16 07:14:45,634 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:45,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:45,634 INFO L82 PathProgramCache]: Analyzing trace with hash -607412681, now seen corresponding path program 28 times [2021-04-16 07:14:45,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:45,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275750289] [2021-04-16 07:14:45,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:45,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:45,638 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_523) InVars {main_~mid~0=v_main_~mid~0_523} OutVars{main_~mid~0=v_main_~mid~0_523} AuxVars[] AssignedVars[] [2021-04-16 07:14:45,640 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:45,642 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,645 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,646 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,648 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,649 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,650 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,652 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,655 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:45,655 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:45,657 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:45,659 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,660 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,662 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,664 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,665 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,666 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:14:45,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:45,681 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:45,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:45,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:45,700 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:45,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:45,707 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:14:45,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:45,721 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:45,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:45,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:45,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:45,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:45,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:45,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:45,770 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-04-16 07:14:45,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:45,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:45,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 07:14:45,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:14:45,791 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-04-16 07:14:45,792 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:45,807 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:45,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,009 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,026 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,043 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,076 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,076 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,096 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,117 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,118 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,139 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,162 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,185 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,185 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,209 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,234 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,235 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,261 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,288 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,323 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,352 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,353 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,383 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,415 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,415 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,449 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,482 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,516 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,551 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,552 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,589 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,590 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,628 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,629 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:46,666 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,705 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,744 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:46,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:46,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:46,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:46,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275750289] [2021-04-16 07:14:46,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:46,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-04-16 07:14:46,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471896510] [2021-04-16 07:14:46,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-04-16 07:14:46,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:46,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-04-16 07:14:46,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1299, Unknown=1, NotChecked=0, Total=1406 [2021-04-16 07:14:46,789 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 34 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:48,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:48,592 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-04-16 07:14:48,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-16 07:14:48,592 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 34 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-04-16 07:14:48,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:48,592 INFO L225 Difference]: With dead ends: 47 [2021-04-16 07:14:48,592 INFO L226 Difference]: Without dead ends: 42 [2021-04-16 07:14:48,593 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 2210.2ms TimeCoverageRelationStatistics Valid=276, Invalid=4693, Unknown=1, NotChecked=0, Total=4970 [2021-04-16 07:14:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-04-16 07:14:48,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-04-16 07:14:48,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:48,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-04-16 07:14:48,609 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2021-04-16 07:14:48,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:48,609 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-04-16 07:14:48,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 34 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:48,609 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-04-16 07:14:48,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-04-16 07:14:48,609 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:48,609 INFO L519 BasicCegarLoop]: trace histogram [29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:48,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-04-16 07:14:48,610 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:48,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:48,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1615428849, now seen corresponding path program 29 times [2021-04-16 07:14:48,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:48,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177922168] [2021-04-16 07:14:48,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:48,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:48,615 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_556) InVars {main_~mid~0=v_main_~mid~0_556} OutVars{main_~mid~0=v_main_~mid~0_556} AuxVars[] AssignedVars[] [2021-04-16 07:14:48,616 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:48,617 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,619 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,621 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:48,621 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:48,623 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,625 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,626 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:48,628 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,630 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,632 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,634 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,635 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,637 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,638 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,640 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,640 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:48,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:48,656 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:48,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:48,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:48,674 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:48,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:48,681 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:14:48,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:48,692 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:48,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:48,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:48,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:48,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:48,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:48,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:48,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:48,727 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:14:48,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-16 07:14:48,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-16 07:14:48,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:48,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,748 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:48,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:48,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:48,768 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:48,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,769 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:48,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:48,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:48,792 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:48,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,793 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:48,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:48,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:48,819 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:48,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,820 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:48,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:48,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:48,849 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:48,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,850 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:48,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:48,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:48,881 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:48,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,882 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:48,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:48,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:48,918 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:48,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,919 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:48,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:48,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:48,958 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:48,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:48,959 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:48,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:48,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,000 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,002 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,098 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,099 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,147 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,148 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,199 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,200 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,259 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,261 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,314 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,315 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,371 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,372 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,432 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,440 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,506 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,508 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,589 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,590 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,659 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,661 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,732 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,733 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,808 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,809 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,887 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,888 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:49,967 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:49,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:49,968 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:49,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:49,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:50,053 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:50,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:50,054 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:50,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:50,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:50,138 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:50,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:50,139 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:50,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:50,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:50,227 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:50,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:50,228 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:50,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:50,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:50,319 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:50,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:50,320 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:50,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:50,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:50,415 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:50,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:50,416 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:50,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:50,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:50,522 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:14:50,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:50,523 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:14:50,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:50,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:14:50,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:50,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:50,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [177922168] [2021-04-16 07:14:50,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:50,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-04-16 07:14:50,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342291578] [2021-04-16 07:14:50,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-04-16 07:14:50,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:50,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-04-16 07:14:50,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1373, Unknown=0, NotChecked=0, Total=1482 [2021-04-16 07:14:50,624 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 35 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:54,191 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-04-16 07:14:54,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-16 07:14:54,192 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 35 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-04-16 07:14:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:54,192 INFO L225 Difference]: With dead ends: 48 [2021-04-16 07:14:54,192 INFO L226 Difference]: Without dead ends: 43 [2021-04-16 07:14:54,192 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 4061.5ms TimeCoverageRelationStatistics Valid=284, Invalid=4972, Unknown=0, NotChecked=0, Total=5256 [2021-04-16 07:14:54,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-04-16 07:14:54,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-04-16 07:14:54,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 38 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:54,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-04-16 07:14:54,210 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2021-04-16 07:14:54,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:54,210 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-04-16 07:14:54,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 35 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:54,210 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-04-16 07:14:54,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-16 07:14:54,210 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:54,210 INFO L519 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:54,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-04-16 07:14:54,210 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:54,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:54,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1495808311, now seen corresponding path program 30 times [2021-04-16 07:14:54,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:54,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698522882] [2021-04-16 07:14:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:54,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:54,218 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_590) InVars {main_~mid~0=v_main_~mid~0_590} OutVars{main_~mid~0=v_main_~mid~0_590} AuxVars[] AssignedVars[] [2021-04-16 07:14:54,219 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:54,220 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,222 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,224 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,226 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,227 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,228 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,230 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:54,232 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,232 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:54,234 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:54,236 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,238 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,239 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,241 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,243 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,243 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:14:54,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:54,259 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:54,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:54,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:54,270 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:54,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:54,278 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:14:54,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:14:54,293 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:54,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:54,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:54,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:54,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:54,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:54,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:54,330 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-04-16 07:14:54,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:54,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:54,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:14:54,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:14:54,348 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-04-16 07:14:54,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,363 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,570 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,587 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,624 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,645 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,645 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:54,666 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,688 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,688 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:54,710 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,711 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:54,734 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,734 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:54,758 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,784 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,785 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:54,811 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,811 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:54,838 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,866 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,896 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,926 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,927 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:54,957 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:54,990 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:54,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:55,023 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:55,057 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,058 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:55,096 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,097 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:55,132 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,133 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:55,169 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,170 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:55,208 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,217 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:55,257 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,257 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:55,309 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,310 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:55,354 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,354 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:14:55,398 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:14:55,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:14:55,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:55,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:55,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698522882] [2021-04-16 07:14:55,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:14:55,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-04-16 07:14:55,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547331806] [2021-04-16 07:14:55,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-04-16 07:14:55,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:14:55,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-04-16 07:14:55,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1447, Unknown=1, NotChecked=0, Total=1560 [2021-04-16 07:14:55,442 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 38 states, 37 states have (on average 1.027027027027027) internal successors, (38), 36 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:57,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:14:57,977 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2021-04-16 07:14:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-16 07:14:57,977 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 1.027027027027027) internal successors, (38), 36 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-04-16 07:14:57,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:14:57,978 INFO L225 Difference]: With dead ends: 49 [2021-04-16 07:14:57,978 INFO L226 Difference]: Without dead ends: 44 [2021-04-16 07:14:57,978 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 2606.3ms TimeCoverageRelationStatistics Valid=292, Invalid=5257, Unknown=1, NotChecked=0, Total=5550 [2021-04-16 07:14:57,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-04-16 07:14:57,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-04-16 07:14:57,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2021-04-16 07:14:57,995 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2021-04-16 07:14:57,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:14:57,996 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2021-04-16 07:14:57,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 37 states have (on average 1.027027027027027) internal successors, (38), 36 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:14:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2021-04-16 07:14:57,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-04-16 07:14:57,996 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:14:57,996 INFO L519 BasicCegarLoop]: trace histogram [31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:14:57,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-04-16 07:14:57,996 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:14:57,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:14:57,996 INFO L82 PathProgramCache]: Analyzing trace with hash -840087537, now seen corresponding path program 31 times [2021-04-16 07:14:57,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:14:57,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946381012] [2021-04-16 07:14:57,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:14:58,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:58,002 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_625) InVars {main_~mid~0=v_main_~mid~0_625} OutVars{main_~mid~0=v_main_~mid~0_625} AuxVars[] AssignedVars[] [2021-04-16 07:14:58,003 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:14:58,003 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,006 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:58,008 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,008 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:58,010 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:14:58,012 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,014 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,017 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,019 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,021 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,023 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,024 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,026 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,028 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,030 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,030 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:14:58,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,048 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:14:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:58,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:58,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:14:58,059 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:14:58,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:14:58,068 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:14:58,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:14:58,076 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:14:58,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:14:58,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:58,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:14:58,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:58,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:14:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:14:58,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:14:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:14:58,111 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:14:58,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:14:58,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:14:58,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:14:58,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,131 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,154 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,155 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,178 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,179 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,205 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,206 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,249 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,250 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,280 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,281 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,315 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,316 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,353 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,354 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,393 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,394 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,438 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,439 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,487 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,488 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,540 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,541 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,594 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,595 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,648 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,650 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,706 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,707 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,768 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,769 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,832 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,833 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,898 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,899 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:58,967 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:58,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:58,968 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:58,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:58,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,040 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,041 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,116 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,117 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,194 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,195 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,274 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,275 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,360 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,361 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,445 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,446 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,535 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,536 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,628 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,629 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,724 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,823 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,824 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:14:59,927 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:14:59,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:14:59,928 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:14:59,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:14:59,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:00,035 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:00,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:00,036 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:00,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:00,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:00,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:00,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:00,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946381012] [2021-04-16 07:15:00,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:15:00,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-04-16 07:15:00,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912776665] [2021-04-16 07:15:00,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-04-16 07:15:00,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:15:00,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-04-16 07:15:00,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-04-16 07:15:00,145 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand has 39 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 37 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:04,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:15:04,244 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-04-16 07:15:04,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-04-16 07:15:04,245 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 37 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-04-16 07:15:04,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:15:04,245 INFO L225 Difference]: With dead ends: 50 [2021-04-16 07:15:04,245 INFO L226 Difference]: Without dead ends: 45 [2021-04-16 07:15:04,245 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 866 ImplicationChecksByTransitivity, 4577.9ms TimeCoverageRelationStatistics Valid=300, Invalid=5552, Unknown=0, NotChecked=0, Total=5852 [2021-04-16 07:15:04,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-04-16 07:15:04,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-04-16 07:15:04,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:04,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2021-04-16 07:15:04,264 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2021-04-16 07:15:04,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:15:04,265 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2021-04-16 07:15:04,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 37 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:04,265 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2021-04-16 07:15:04,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-16 07:15:04,265 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:15:04,265 INFO L519 BasicCegarLoop]: trace histogram [32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:15:04,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-04-16 07:15:04,265 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:15:04,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:15:04,265 INFO L82 PathProgramCache]: Analyzing trace with hash -238414793, now seen corresponding path program 32 times [2021-04-16 07:15:04,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:15:04,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724434021] [2021-04-16 07:15:04,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:15:04,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:04,274 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_661) InVars {main_~mid~0=v_main_~mid~0_661} OutVars{main_~mid~0=v_main_~mid~0_661} AuxVars[] AssignedVars[] [2021-04-16 07:15:04,275 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:15:04,277 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,279 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,280 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,282 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,284 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,284 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,287 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,289 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:04,289 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:04,291 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:04,293 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,295 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,297 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,299 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,301 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,302 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:15:04,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:04,320 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:15:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:04,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:04,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:04,331 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:15:04,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:15:04,339 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:15:04,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:15:04,356 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:15:04,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:15:04,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:04,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:04,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:04,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:15:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:04,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:15:04,392 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:15:04,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:15:04,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:04,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:04,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,413 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,434 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,435 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,461 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,490 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,491 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,526 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,527 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,563 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,564 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,606 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,647 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,648 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,693 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,695 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,744 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,745 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,799 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,800 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,858 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,859 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,920 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,922 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:04,981 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:04,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:04,983 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:04,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:04,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,048 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,049 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,116 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,117 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,188 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,189 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,272 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,273 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,351 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,352 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,431 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,432 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,516 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,517 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,606 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,697 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,698 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,792 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,793 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,893 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,894 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:05,996 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:05,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:05,997 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:05,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:05,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:06,105 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:06,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:06,106 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:06,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:06,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:06,214 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:06,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:06,215 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:06,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:06,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:06,323 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:06,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:06,324 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:06,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:06,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:06,437 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:06,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:06,438 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:06,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:06,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:06,554 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:06,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:06,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:06,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:06,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:06,682 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:06,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:06,683 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:06,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:06,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:06,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:06,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:06,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724434021] [2021-04-16 07:15:06,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:15:06,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-04-16 07:15:06,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744225914] [2021-04-16 07:15:06,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-04-16 07:15:06,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:15:06,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-04-16 07:15:06,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1604, Unknown=0, NotChecked=0, Total=1722 [2021-04-16 07:15:06,813 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 40 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 38 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:11,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:15:11,846 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-04-16 07:15:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-04-16 07:15:11,847 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 38 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-04-16 07:15:11,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:15:11,847 INFO L225 Difference]: With dead ends: 51 [2021-04-16 07:15:11,847 INFO L226 Difference]: Without dead ends: 46 [2021-04-16 07:15:11,848 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 5388.4ms TimeCoverageRelationStatistics Valid=308, Invalid=5854, Unknown=0, NotChecked=0, Total=6162 [2021-04-16 07:15:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-04-16 07:15:11,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-04-16 07:15:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.024390243902439) internal successors, (42), 41 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-04-16 07:15:11,869 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2021-04-16 07:15:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:15:11,869 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-04-16 07:15:11,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 38 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:11,869 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-04-16 07:15:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-04-16 07:15:11,869 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:15:11,869 INFO L519 BasicCegarLoop]: trace histogram [33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:15:11,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-04-16 07:15:11,869 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:15:11,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:15:11,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1233571087, now seen corresponding path program 33 times [2021-04-16 07:15:11,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:15:11,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872903108] [2021-04-16 07:15:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:15:11,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:11,875 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_698) InVars {main_~mid~0=v_main_~mid~0_698} OutVars{main_~mid~0=v_main_~mid~0_698} AuxVars[] AssignedVars[] [2021-04-16 07:15:11,876 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:15:11,876 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,879 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:11,881 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,882 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:11,884 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:11,886 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,888 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,890 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,893 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,895 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,898 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,900 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,902 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,904 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,906 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,906 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:15:11,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:11,925 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:15:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:11,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:11,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:11,939 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:15:11,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:15:11,947 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:15:11,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:11,956 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:15:11,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:15:11,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:11,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:11,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:11,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:11,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:15:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:12,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:12,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:15:12,006 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:15:12,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:12,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:15:12,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:12,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:12,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,031 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,053 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,054 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,081 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,082 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,115 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,116 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,148 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,149 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,184 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,185 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,225 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,226 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,271 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,272 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,317 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,319 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,368 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,370 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,421 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,423 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,478 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,539 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,541 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,603 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,604 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,672 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,674 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,747 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,749 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,824 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,825 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,901 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,903 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:12,980 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:12,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:12,982 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:12,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:12,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,063 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,064 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,148 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,149 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,239 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,240 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,332 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,333 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,427 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,428 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,528 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,529 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,634 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,635 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,742 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,744 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,853 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,854 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:13,970 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:13,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:13,971 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:13,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:13,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:14,089 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:14,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:14,091 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:14,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:14,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:14,209 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:14,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:14,210 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:14,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:14,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:14,331 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:14,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:14,332 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:14,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:14,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:14,464 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:14,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:14,466 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:14,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:14,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:14,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:14,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:14,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872903108] [2021-04-16 07:15:14,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:15:14,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-04-16 07:15:14,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891151509] [2021-04-16 07:15:14,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-04-16 07:15:14,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:15:14,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-04-16 07:15:14,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1685, Unknown=0, NotChecked=0, Total=1806 [2021-04-16 07:15:14,594 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 41 states, 40 states have (on average 1.025) internal successors, (41), 39 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:20,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:15:20,109 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-04-16 07:15:20,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-04-16 07:15:20,109 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.025) internal successors, (41), 39 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-04-16 07:15:20,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:15:20,110 INFO L225 Difference]: With dead ends: 52 [2021-04-16 07:15:20,110 INFO L226 Difference]: Without dead ends: 47 [2021-04-16 07:15:20,111 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 5833.1ms TimeCoverageRelationStatistics Valid=316, Invalid=6164, Unknown=0, NotChecked=0, Total=6480 [2021-04-16 07:15:20,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-04-16 07:15:20,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-04-16 07:15:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 42 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:20,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-04-16 07:15:20,142 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2021-04-16 07:15:20,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:15:20,142 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-04-16 07:15:20,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 40 states have (on average 1.025) internal successors, (41), 39 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-04-16 07:15:20,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-04-16 07:15:20,143 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:15:20,143 INFO L519 BasicCegarLoop]: trace histogram [34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:15:20,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-04-16 07:15:20,143 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:15:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:15:20,143 INFO L82 PathProgramCache]: Analyzing trace with hash -379506889, now seen corresponding path program 34 times [2021-04-16 07:15:20,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:15:20,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957729079] [2021-04-16 07:15:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:15:20,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:20,148 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_736) InVars {main_~mid~0=v_main_~mid~0_736} OutVars{main_~mid~0=v_main_~mid~0_736} AuxVars[] AssignedVars[] [2021-04-16 07:15:20,149 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:15:20,151 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,153 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,154 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,156 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,158 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,159 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,161 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,164 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:20,164 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:20,166 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,168 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,170 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,171 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:20,173 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,175 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,176 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:15:20,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:15:20,193 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:15:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:20,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:20,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:20,217 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:15:20,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:15:20,226 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:15:20,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:15:20,245 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:15:20,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:15:20,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:20,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:20,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:15:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:20,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:15:20,290 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-04-16 07:15:20,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:20,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:20,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 07:15:20,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:15:20,313 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-04-16 07:15:20,314 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,331 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,332 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,551 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:20,570 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:20,589 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:20,609 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:20,630 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:20,653 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:20,676 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,677 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,701 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,701 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,726 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:20,754 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,754 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,781 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,782 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,810 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,811 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,840 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,841 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,871 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,872 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,903 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,904 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:20,937 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:20,976 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:20,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:21,014 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,015 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:21,053 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,054 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:21,094 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,095 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:21,136 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,137 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:21,179 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:21,222 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,223 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:21,267 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:21,315 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,315 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:21,359 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:21,404 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:21,451 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,452 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:21,501 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,502 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:21,552 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:21,603 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:21,656 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:21,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:21,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:21,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:21,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957729079] [2021-04-16 07:15:21,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:15:21,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2021-04-16 07:15:21,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978563584] [2021-04-16 07:15:21,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-04-16 07:15:21,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:15:21,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-04-16 07:15:21,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1767, Unknown=1, NotChecked=0, Total=1892 [2021-04-16 07:15:21,711 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 42 states, 41 states have (on average 1.024390243902439) internal successors, (42), 40 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:24,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:15:24,674 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-04-16 07:15:24,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-04-16 07:15:24,675 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 1.024390243902439) internal successors, (42), 40 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2021-04-16 07:15:24,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:15:24,675 INFO L225 Difference]: With dead ends: 53 [2021-04-16 07:15:24,675 INFO L226 Difference]: Without dead ends: 48 [2021-04-16 07:15:24,676 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 998 ImplicationChecksByTransitivity, 3430.0ms TimeCoverageRelationStatistics Valid=324, Invalid=6480, Unknown=2, NotChecked=0, Total=6806 [2021-04-16 07:15:24,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-04-16 07:15:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-04-16 07:15:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 43 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:24,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-04-16 07:15:24,701 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2021-04-16 07:15:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:15:24,701 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-04-16 07:15:24,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 41 states have (on average 1.024390243902439) internal successors, (42), 40 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-04-16 07:15:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-04-16 07:15:24,701 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:15:24,701 INFO L519 BasicCegarLoop]: trace histogram [35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:15:24,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-04-16 07:15:24,701 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:15:24,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:15:24,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1154683407, now seen corresponding path program 35 times [2021-04-16 07:15:24,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:15:24,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435331876] [2021-04-16 07:15:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:15:24,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:24,713 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_775) InVars {main_~mid~0=v_main_~mid~0_775} OutVars{main_~mid~0=v_main_~mid~0_775} AuxVars[] AssignedVars[] [2021-04-16 07:15:24,714 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:15:24,715 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,717 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:24,719 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,720 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:24,721 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:24,725 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,727 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,729 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,731 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,733 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,736 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,737 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,739 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,741 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,742 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,743 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:15:24,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:24,760 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:15:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:24,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:24,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:24,772 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:15:24,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:15:24,781 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:15:24,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:24,790 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:15:24,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:15:24,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:24,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:24,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:24,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:15:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:24,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:15:24,827 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:15:24,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:24,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:15:24,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:24,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:24,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:24,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:24,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:24,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:24,874 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:24,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:24,875 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:24,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:24,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:24,903 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:24,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:24,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:24,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:24,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:24,936 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:24,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:24,937 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:24,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:24,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:24,973 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:24,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:24,975 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:24,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:24,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,016 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,018 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,058 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,060 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,110 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,111 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,162 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,220 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,221 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,279 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,281 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,346 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,347 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,413 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,414 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,485 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,486 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,560 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,562 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,642 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,644 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,724 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,815 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,816 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,906 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:25,908 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:25,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:25,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:25,999 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:25,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,000 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,096 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,097 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,192 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,194 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,297 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,298 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,398 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,400 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,503 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,504 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,616 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,617 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,730 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,731 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,846 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,847 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:26,966 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:26,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:26,967 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:26,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:26,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:27,088 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:27,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:27,090 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:27,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:27,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:27,215 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:27,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:27,216 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:27,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:27,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:27,343 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:27,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:27,344 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:27,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:27,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:27,473 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:27,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:27,474 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:27,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:27,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:27,608 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:27,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:27,609 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:27,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:27,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:27,746 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:27,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:27,748 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:27,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:27,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:27,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:27,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:27,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435331876] [2021-04-16 07:15:27,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:15:27,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-04-16 07:15:27,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97792282] [2021-04-16 07:15:27,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-04-16 07:15:27,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:15:27,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-04-16 07:15:27,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1853, Unknown=0, NotChecked=0, Total=1980 [2021-04-16 07:15:27,888 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 43 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 41 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:34,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:15:34,511 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2021-04-16 07:15:34,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-04-16 07:15:34,512 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 41 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2021-04-16 07:15:34,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:15:34,512 INFO L225 Difference]: With dead ends: 54 [2021-04-16 07:15:34,512 INFO L226 Difference]: Without dead ends: 49 [2021-04-16 07:15:34,513 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 6864.0ms TimeCoverageRelationStatistics Valid=332, Invalid=6808, Unknown=0, NotChecked=0, Total=7140 [2021-04-16 07:15:34,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-04-16 07:15:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-04-16 07:15:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-04-16 07:15:34,537 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2021-04-16 07:15:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:15:34,537 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-04-16 07:15:34,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 41 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:34,537 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-04-16 07:15:34,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-04-16 07:15:34,538 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:15:34,538 INFO L519 BasicCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:15:34,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-04-16 07:15:34,538 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:15:34,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:15:34,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1469942327, now seen corresponding path program 36 times [2021-04-16 07:15:34,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:15:34,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321334858] [2021-04-16 07:15:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:15:34,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:34,544 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_815) InVars {main_~mid~0=v_main_~mid~0_815} OutVars{main_~mid~0=v_main_~mid~0_815} AuxVars[] AssignedVars[] [2021-04-16 07:15:34,549 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:15:34,551 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,553 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,556 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,558 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,560 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,560 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,563 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,565 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:34,566 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:34,568 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:34,570 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,572 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,575 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,577 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,579 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,580 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:15:34,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:34,599 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:15:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:34,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:34,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:34,613 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:15:34,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:15:34,623 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:15:34,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:34,634 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:15:34,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:15:34,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:34,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:34,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:34,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:15:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:34,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:15:34,685 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:15:34,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:15:34,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:34,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:34,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,711 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:34,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:34,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:34,737 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:34,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,738 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:34,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:34,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:34,770 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:34,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,772 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:34,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:34,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:34,805 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:34,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,807 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:34,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:34,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:34,845 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:34,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,846 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:34,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:34,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:34,887 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:34,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,888 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:34,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:34,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:34,935 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:34,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,936 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:34,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:34,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:34,984 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:34,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:34,985 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:34,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:34,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,039 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,041 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,095 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,096 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,159 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,161 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,225 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,227 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,296 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,297 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,376 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,377 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,458 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,460 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,542 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,544 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,630 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,631 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,722 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,723 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,822 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,823 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:35,920 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:35,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:35,921 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:35,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:35,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:36,021 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:36,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:36,022 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:36,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:36,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:36,127 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:36,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:36,129 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:36,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:36,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:36,239 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:36,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:36,241 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:36,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:36,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:36,353 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:36,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:36,354 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:36,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:36,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:36,470 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:36,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:36,471 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:36,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:36,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:36,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:36,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:36,606 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:36,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:36,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:36,732 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:36,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:36,733 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:36,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:36,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:36,864 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:36,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:36,865 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:36,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:36,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:37,011 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:37,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:37,013 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:37,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:37,157 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:37,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:37,159 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:37,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:37,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:37,301 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:37,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:37,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:37,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:37,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:37,457 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:37,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:37,458 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:37,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:37,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:37,607 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:37,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:37,609 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:37,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:37,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:37,761 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:37,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:37,762 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:37,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:37,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:37,921 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:37,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:37,922 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:37,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:37,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:38,081 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:15:38,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:38,082 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:15:38,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:15:38,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:15:38,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:38,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:38,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321334858] [2021-04-16 07:15:38,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:15:38,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-04-16 07:15:38,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722263797] [2021-04-16 07:15:38,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-04-16 07:15:38,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:15:38,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-04-16 07:15:38,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1940, Unknown=0, NotChecked=0, Total=2070 [2021-04-16 07:15:38,244 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 44 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 42 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:15:44,740 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2021-04-16 07:15:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-04-16 07:15:44,741 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 42 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-04-16 07:15:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:15:44,742 INFO L225 Difference]: With dead ends: 55 [2021-04-16 07:15:44,742 INFO L226 Difference]: Without dead ends: 50 [2021-04-16 07:15:44,743 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 7455.5ms TimeCoverageRelationStatistics Valid=340, Invalid=7142, Unknown=0, NotChecked=0, Total=7482 [2021-04-16 07:15:44,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-04-16 07:15:44,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-04-16 07:15:44,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:44,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-04-16 07:15:44,769 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2021-04-16 07:15:44,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:15:44,770 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-04-16 07:15:44,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 42 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:44,770 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-04-16 07:15:44,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-04-16 07:15:44,770 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:15:44,770 INFO L519 BasicCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:15:44,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-04-16 07:15:44,770 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:15:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:15:44,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1641933041, now seen corresponding path program 37 times [2021-04-16 07:15:44,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:15:44,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489813399] [2021-04-16 07:15:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:15:44,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:44,776 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_856) InVars {main_~mid~0=v_main_~mid~0_856} OutVars{main_~mid~0=v_main_~mid~0_856} AuxVars[] AssignedVars[] [2021-04-16 07:15:44,777 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:15:44,777 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,782 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:44,784 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,785 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:44,787 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:44,790 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,793 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,795 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,798 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,800 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,803 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,805 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,807 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,809 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,811 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,811 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:15:44,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:15:44,832 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:15:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:44,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:44,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:44,845 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:15:44,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:15:44,857 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:15:44,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:15:44,880 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:15:44,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:15:44,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:44,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:44,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:44,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:15:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:44,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:44,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:15:44,934 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-04-16 07:15:44,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:44,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:44,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:15:44,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:15:44,959 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-04-16 07:15:44,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:44,978 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:44,979 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,204 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,225 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,226 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,247 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,248 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,270 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,285 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,312 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,343 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,344 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,374 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,411 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,412 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,443 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,475 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,507 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,540 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,574 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,575 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,609 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,610 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,645 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,683 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,683 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,721 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,722 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,761 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,762 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,801 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:45,843 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,844 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,886 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,887 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,930 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,931 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:45,976 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:45,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:46,022 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,023 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:46,070 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:46,119 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:46,172 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:46,225 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,226 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:46,284 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:46,341 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,342 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:46,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,398 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:46,453 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:46,512 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,513 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:46,574 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,575 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:46,638 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:46,639 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:46,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:46,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:46,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489813399] [2021-04-16 07:15:46,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:15:46,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2021-04-16 07:15:46,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42847927] [2021-04-16 07:15:46,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-04-16 07:15:46,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:15:46,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-04-16 07:15:46,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2028, Unknown=1, NotChecked=0, Total=2162 [2021-04-16 07:15:46,702 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 43 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:50,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:15:50,214 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-04-16 07:15:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-04-16 07:15:50,215 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 43 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-04-16 07:15:50,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:15:50,216 INFO L225 Difference]: With dead ends: 56 [2021-04-16 07:15:50,216 INFO L226 Difference]: Without dead ends: 51 [2021-04-16 07:15:50,216 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 3926.5ms TimeCoverageRelationStatistics Valid=348, Invalid=7483, Unknown=1, NotChecked=0, Total=7832 [2021-04-16 07:15:50,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-04-16 07:15:50,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-04-16 07:15:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 46 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:50,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-04-16 07:15:50,246 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2021-04-16 07:15:50,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:15:50,246 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-04-16 07:15:50,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 43 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:50,246 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-04-16 07:15:50,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-04-16 07:15:50,246 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:15:50,246 INFO L519 BasicCegarLoop]: trace histogram [38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:15:50,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-04-16 07:15:50,246 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:15:50,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:15:50,247 INFO L82 PathProgramCache]: Analyzing trace with hash 674178359, now seen corresponding path program 38 times [2021-04-16 07:15:50,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:15:50,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303246358] [2021-04-16 07:15:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:15:50,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:50,261 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_898) InVars {main_~mid~0=v_main_~mid~0_898} OutVars{main_~mid~0=v_main_~mid~0_898} AuxVars[] AssignedVars[] [2021-04-16 07:15:50,262 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:15:50,264 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,266 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,268 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,271 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,273 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,274 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,277 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,280 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:50,281 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:50,283 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,285 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:50,287 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,289 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,292 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,294 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,295 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:15:50,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:15:50,317 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:15:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:50,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:50,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:50,339 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:15:50,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:15:50,349 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:15:50,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:15:50,369 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:15:50,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:15:50,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:50,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:50,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:50,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:15:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:50,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:15:50,428 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-04-16 07:15:50,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:50,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:50,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 07:15:50,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:15:50,456 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-04-16 07:15:50,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:50,477 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,478 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:50,697 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:50,722 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,723 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:50,745 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,746 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:50,768 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,769 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:50,793 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:50,820 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:50,847 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,847 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:50,875 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:50,905 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:50,937 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,937 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:50,969 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:50,969 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:51,003 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,038 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,073 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,113 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,154 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,154 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:51,193 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,234 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,235 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:51,276 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,276 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:51,319 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,363 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,408 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,409 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:51,454 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,502 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,502 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:51,551 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,552 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:51,614 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,615 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:51,691 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,745 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,800 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,855 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,911 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:51,968 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:51,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:52,026 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:52,027 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:52,085 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:52,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:15:52,146 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:52,146 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:52,210 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:15:52,210 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:15:52,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:52,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:52,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303246358] [2021-04-16 07:15:52,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:15:52,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2021-04-16 07:15:52,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090874821] [2021-04-16 07:15:52,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-04-16 07:15:52,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:15:52,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-04-16 07:15:52,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2119, Unknown=1, NotChecked=0, Total=2256 [2021-04-16 07:15:52,275 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 44 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:15:56,351 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2021-04-16 07:15:56,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-16 07:15:56,352 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 44 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-04-16 07:15:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:15:56,353 INFO L225 Difference]: With dead ends: 57 [2021-04-16 07:15:56,353 INFO L226 Difference]: Without dead ends: 52 [2021-04-16 07:15:56,353 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 4491.1ms TimeCoverageRelationStatistics Valid=356, Invalid=7832, Unknown=2, NotChecked=0, Total=8190 [2021-04-16 07:15:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-04-16 07:15:56,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-04-16 07:15:56,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-04-16 07:15:56,380 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2021-04-16 07:15:56,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:15:56,380 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-04-16 07:15:56,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 44 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:15:56,380 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-04-16 07:15:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-04-16 07:15:56,380 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:15:56,380 INFO L519 BasicCegarLoop]: trace histogram [39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:15:56,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-04-16 07:15:56,380 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:15:56,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:15:56,381 INFO L82 PathProgramCache]: Analyzing trace with hash -540812273, now seen corresponding path program 39 times [2021-04-16 07:15:56,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:15:56,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917909330] [2021-04-16 07:15:56,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:15:56,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:56,386 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_941) InVars {main_~mid~0=v_main_~mid~0_941} OutVars{main_~mid~0=v_main_~mid~0_941} AuxVars[] AssignedVars[] [2021-04-16 07:15:56,388 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:15:56,388 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,392 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:56,394 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,395 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:56,397 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:15:56,401 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,403 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,407 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,409 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,412 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,415 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,418 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,420 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,422 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,425 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,425 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:15:56,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,449 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:15:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:56,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:56,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:15:56,462 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:15:56,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:15:56,473 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:15:56,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:15:56,485 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:15:56,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:15:56,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:56,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:15:56,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:56,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:15:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:15:56,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:15:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:15:56,534 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:15:56,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:15:56,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:15:56,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:15:56,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,567 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,599 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,601 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,637 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,639 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,677 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,679 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,715 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,717 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,760 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,761 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,808 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,809 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,867 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,868 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,925 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,926 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:56,985 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:56,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:56,987 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:56,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:56,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,058 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,059 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,130 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,132 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,205 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,207 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,283 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,285 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,369 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,370 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,456 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,457 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,548 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,550 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,639 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,641 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,739 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,740 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,845 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,846 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:57,950 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:57,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:57,951 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:57,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:57,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:58,057 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:58,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:58,058 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:58,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:58,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:58,185 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:58,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:58,187 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:58,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:58,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:58,298 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:58,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:58,299 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:58,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:58,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:58,416 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:58,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:58,417 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:58,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:58,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:58,533 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:58,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:58,534 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:58,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:58,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:58,664 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:58,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:58,665 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:58,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:58,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:58,795 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:58,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:58,796 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:58,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:58,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:58,934 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:58,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:58,936 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:58,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:58,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:59,075 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:59,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:59,077 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:59,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:59,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:59,220 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:59,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:59,222 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:59,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:59,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:59,364 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:59,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:59,365 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:59,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:59,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:59,520 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:59,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:59,521 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:59,679 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:59,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:59,680 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:59,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:59,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:15:59,840 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:15:59,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:15:59,842 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:15:59,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:15:59,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:00,002 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:00,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:00,003 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:00,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:00,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:00,170 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:00,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:00,171 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:00,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:00,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:00,342 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:00,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:00,343 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:00,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:00,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:00,521 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:00,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:00,522 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:00,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:00,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:00,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:00,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:00,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917909330] [2021-04-16 07:16:00,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:16:00,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2021-04-16 07:16:00,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236571222] [2021-04-16 07:16:00,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-04-16 07:16:00,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:16:00,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-04-16 07:16:00,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=2213, Unknown=0, NotChecked=0, Total=2352 [2021-04-16 07:16:00,697 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 47 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 45 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:16:08,515 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-04-16 07:16:08,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-04-16 07:16:08,516 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 45 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-04-16 07:16:08,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:16:08,516 INFO L225 Difference]: With dead ends: 58 [2021-04-16 07:16:08,516 INFO L226 Difference]: Without dead ends: 53 [2021-04-16 07:16:08,517 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 8780.3ms TimeCoverageRelationStatistics Valid=364, Invalid=8192, Unknown=0, NotChecked=0, Total=8556 [2021-04-16 07:16:08,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-04-16 07:16:08,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-04-16 07:16:08,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2021-04-16 07:16:08,546 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2021-04-16 07:16:08,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:16:08,546 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2021-04-16 07:16:08,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 47 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 45 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2021-04-16 07:16:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-04-16 07:16:08,546 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:16:08,546 INFO L519 BasicCegarLoop]: trace histogram [40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:16:08,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-04-16 07:16:08,546 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:16:08,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:16:08,546 INFO L82 PathProgramCache]: Analyzing trace with hash 449183799, now seen corresponding path program 40 times [2021-04-16 07:16:08,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:16:08,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399875634] [2021-04-16 07:16:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:16:08,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:16:08,552 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_985) InVars {main_~mid~0=v_main_~mid~0_985} OutVars{main_~mid~0=v_main_~mid~0_985} AuxVars[] AssignedVars[] [2021-04-16 07:16:08,557 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:16:08,558 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,561 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,564 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:16:08,565 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:16:08,567 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:16:08,570 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,573 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,576 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,579 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,583 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,585 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,588 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,590 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,593 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,595 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,596 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:16:08,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:08,620 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:16:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:16:08,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:08,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:16:08,636 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:16:08,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:16:08,649 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:16:08,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:16:08,673 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:16:08,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:16:08,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:16:08,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:16:08,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:08,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:16:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:16:08,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:16:08,729 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:16:08,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:08,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:16:08,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:16:08,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:08,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:08,758 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:08,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:08,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:08,787 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:08,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:08,789 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:08,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:08,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:08,823 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:08,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:08,825 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:08,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:08,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:08,864 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:08,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:08,865 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:08,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:08,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:08,909 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:08,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:08,910 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:08,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:08,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:08,958 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:08,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:08,959 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:08,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:08,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,008 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,010 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,069 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,070 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,132 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,133 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,206 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,207 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,281 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,282 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,362 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,443 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,444 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,529 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,531 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,616 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,617 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,710 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,712 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,807 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,809 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:09,910 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:09,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:09,911 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:09,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:09,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:10,023 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:10,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:10,024 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:10,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:10,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:10,138 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:10,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:10,139 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:10,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:10,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:10,256 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:10,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:10,257 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:10,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:10,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:10,379 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:10,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:10,380 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:10,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:10,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:10,501 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:10,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:10,502 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:10,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:10,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:10,630 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:10,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:10,631 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:10,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:10,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:10,754 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:10,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:10,756 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:10,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:10,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:10,883 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:10,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:10,885 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:10,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:10,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:11,020 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:11,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:11,021 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:11,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:11,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:11,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:11,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:11,162 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:11,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:11,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:11,306 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:11,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:11,308 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:11,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:11,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:11,461 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:11,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:11,462 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:11,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:11,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:11,613 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:11,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:11,615 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:11,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:11,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:11,776 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:11,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:11,777 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:11,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:11,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:11,943 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:11,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:11,945 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:11,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:11,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:12,179 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:12,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:12,181 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:12,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:12,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:12,354 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:12,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:12,356 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:12,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:12,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:12,529 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:12,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:12,530 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:12,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:12,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:12,707 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:12,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:12,709 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:12,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:12,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:12,891 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:12,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:12,893 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:12,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:12,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:13,074 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:13,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:13,076 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:13,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:13,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:13,268 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:16:13,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:13,269 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:16:13,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:13,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:16:13,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:13,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:13,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399875634] [2021-04-16 07:16:13,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:16:13,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2021-04-16 07:16:13,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198510853] [2021-04-16 07:16:13,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-04-16 07:16:13,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:16:13,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-04-16 07:16:13,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=2308, Unknown=0, NotChecked=0, Total=2450 [2021-04-16 07:16:13,473 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 46 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:23,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:16:23,163 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2021-04-16 07:16:23,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-04-16 07:16:23,164 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 46 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-04-16 07:16:23,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:16:23,164 INFO L225 Difference]: With dead ends: 59 [2021-04-16 07:16:23,164 INFO L226 Difference]: Without dead ends: 54 [2021-04-16 07:16:23,165 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 10470.5ms TimeCoverageRelationStatistics Valid=372, Invalid=8558, Unknown=0, NotChecked=0, Total=8930 [2021-04-16 07:16:23,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-04-16 07:16:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-04-16 07:16:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 49 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:23,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-04-16 07:16:23,195 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2021-04-16 07:16:23,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:16:23,195 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-04-16 07:16:23,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 46 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:23,195 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-04-16 07:16:23,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-04-16 07:16:23,196 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:16:23,196 INFO L519 BasicCegarLoop]: trace histogram [41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:16:23,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-04-16 07:16:23,196 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:16:23,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:16:23,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1074290959, now seen corresponding path program 41 times [2021-04-16 07:16:23,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:16:23,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642364640] [2021-04-16 07:16:23,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:16:23,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:16:23,214 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1030) InVars {main_~mid~0=v_main_~mid~0_1030} OutVars{main_~mid~0=v_main_~mid~0_1030} AuxVars[] AssignedVars[] [2021-04-16 07:16:23,215 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:16:23,218 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,220 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,222 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,224 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,226 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,227 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,229 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,232 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:16:23,233 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:16:23,235 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:16:23,238 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,240 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,243 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,245 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,247 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,248 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:16:23,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:23,270 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:16:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:16:23,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:23,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:16:23,281 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:16:23,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:16:23,292 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-16 07:16:23,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:16:23,313 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:16:23,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:16:23,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:16:23,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:16:23,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:23,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:16:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:16:23,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:16:23,360 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-04-16 07:16:23,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:23,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:23,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:16:23,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:23,391 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-04-16 07:16:23,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,411 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,411 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:23,633 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,655 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,655 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:23,684 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,708 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,733 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,734 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:23,760 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,761 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:23,787 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,817 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,847 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,878 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,879 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:23,911 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,945 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:23,980 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:23,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,016 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,054 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,093 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,094 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:24,133 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,134 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:24,176 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,222 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,266 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,312 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,358 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,359 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:24,406 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,407 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:24,455 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,505 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,557 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:24,609 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,663 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,719 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,720 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:24,776 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,777 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:24,834 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:24,899 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,900 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:24,959 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:24,960 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:25,023 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:25,023 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:25,085 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:25,086 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:25,148 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:25,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:16:25,214 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:25,215 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:25,281 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:25,281 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:25,348 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:16:25,349 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:16:25,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:25,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:25,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642364640] [2021-04-16 07:16:25,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:16:25,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2021-04-16 07:16:25,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480983739] [2021-04-16 07:16:25,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-04-16 07:16:25,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:16:25,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-04-16 07:16:25,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=2404, Unknown=1, NotChecked=0, Total=2550 [2021-04-16 07:16:25,418 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 47 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:30,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:16:30,203 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2021-04-16 07:16:30,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-04-16 07:16:30,205 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 47 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-04-16 07:16:30,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:16:30,205 INFO L225 Difference]: With dead ends: 60 [2021-04-16 07:16:30,205 INFO L226 Difference]: Without dead ends: 55 [2021-04-16 07:16:30,205 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1341 ImplicationChecksByTransitivity, 5009.4ms TimeCoverageRelationStatistics Valid=380, Invalid=8931, Unknown=1, NotChecked=0, Total=9312 [2021-04-16 07:16:30,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-04-16 07:16:30,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-04-16 07:16:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:30,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-04-16 07:16:30,236 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2021-04-16 07:16:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:16:30,236 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-04-16 07:16:30,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 47 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-04-16 07:16:30,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-04-16 07:16:30,237 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:16:30,237 INFO L519 BasicCegarLoop]: trace histogram [42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:16:30,237 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-04-16 07:16:30,237 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:16:30,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:16:30,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1022223561, now seen corresponding path program 42 times [2021-04-16 07:16:30,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:16:30,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890746936] [2021-04-16 07:16:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:16:30,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:16:30,243 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1076) InVars {main_~mid~0=v_main_~mid~0_1076} OutVars{main_~mid~0=v_main_~mid~0_1076} AuxVars[] AssignedVars[] [2021-04-16 07:16:30,244 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:16:30,247 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,250 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,252 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,255 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,257 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,258 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,261 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,264 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:16:30,265 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:16:30,268 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,271 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,273 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,275 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:16:30,278 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,280 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,281 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:16:30,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:30,304 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:16:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:16:30,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:30,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:16:30,322 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:16:30,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:16:30,334 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-16 07:16:30,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:16:30,363 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:16:30,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:16:30,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:16:30,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:16:30,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:30,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:16:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:16:30,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:16:30,415 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:16:30,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-16 07:16:30,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-16 07:16:30,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:30,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,443 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,472 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,474 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,506 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,508 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,544 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,545 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,586 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,587 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,634 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,635 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,683 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,684 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,739 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,741 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,798 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,860 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,862 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,925 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,927 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:30,992 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:30,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:30,993 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:30,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:30,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,063 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,065 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,141 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,142 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,223 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,224 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,316 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,317 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,404 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,406 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,497 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,498 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,594 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,595 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,697 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,699 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,801 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,803 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:31,910 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:31,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:31,912 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:31,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:31,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:32,032 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:32,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:32,034 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:32,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:32,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:32,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:32,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:32,162 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:32,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:32,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:32,286 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:32,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:32,287 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:32,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:32,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:32,422 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:32,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:32,423 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:32,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:32,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:32,549 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:32,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:32,550 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:32,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:32,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:32,682 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:32,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:32,683 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:32,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:32,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:32,821 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:32,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:32,822 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:32,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:32,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:32,959 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:32,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:32,960 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:32,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:32,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:33,102 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:33,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:33,104 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:33,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:33,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:33,249 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:33,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:33,251 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:33,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:33,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:33,405 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:33,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:33,406 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:33,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:33,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:33,588 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:33,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:33,589 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:33,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:33,756 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:33,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:33,758 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:33,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:33,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:33,926 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:33,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:33,927 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:33,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:33,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:34,100 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:34,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:34,102 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:34,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:34,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:34,278 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:34,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:34,279 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:34,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:34,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:34,459 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:34,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:34,461 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:34,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:34,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:34,640 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:34,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:34,641 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:34,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:34,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:34,886 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:34,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:34,887 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:34,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:34,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:35,147 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:16:35,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:35,148 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:16:35,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:35,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:16:35,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:35,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:35,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890746936] [2021-04-16 07:16:35,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:16:35,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2021-04-16 07:16:35,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821348460] [2021-04-16 07:16:35,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-04-16 07:16:35,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:16:35,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-04-16 07:16:35,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=2504, Unknown=0, NotChecked=0, Total=2652 [2021-04-16 07:16:35,407 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 50 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 48 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:48,105 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2021-04-16 07:16:48,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:16:48,510 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2021-04-16 07:16:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-04-16 07:16:48,511 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 48 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-04-16 07:16:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:16:48,512 INFO L225 Difference]: With dead ends: 61 [2021-04-16 07:16:48,512 INFO L226 Difference]: Without dead ends: 56 [2021-04-16 07:16:48,512 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1394 ImplicationChecksByTransitivity, 12722.5ms TimeCoverageRelationStatistics Valid=388, Invalid=9314, Unknown=0, NotChecked=0, Total=9702 [2021-04-16 07:16:48,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-04-16 07:16:48,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-04-16 07:16:48,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 51 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:48,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-04-16 07:16:48,551 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2021-04-16 07:16:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:16:48,551 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-04-16 07:16:48,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 48 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:16:48,551 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-04-16 07:16:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-04-16 07:16:48,551 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:16:48,551 INFO L519 BasicCegarLoop]: trace histogram [43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:16:48,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-04-16 07:16:48,551 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:16:48,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:16:48,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1589664241, now seen corresponding path program 43 times [2021-04-16 07:16:48,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:16:48,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701011680] [2021-04-16 07:16:48,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:16:48,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:16:48,562 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1123) InVars {main_~mid~0=v_main_~mid~0_1123} OutVars{main_~mid~0=v_main_~mid~0_1123} AuxVars[] AssignedVars[] [2021-04-16 07:16:48,564 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:16:48,565 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,568 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,572 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:16:48,572 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:16:48,575 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:16:48,578 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,581 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,584 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,587 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,592 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,595 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,598 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,601 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,604 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,606 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,607 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:16:48,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:16:48,638 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:16:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:16:48,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:48,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:16:48,651 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:16:48,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:16:48,665 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:16:48,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:16:48,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:16:48,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:16:48,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:16:48,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:16:48,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:48,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:16:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:16:48,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:16:48,745 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:16:48,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:48,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:16:48,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:16:48,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:48,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:48,779 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:48,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:48,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:48,812 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:48,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:48,813 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:48,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:48,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:48,850 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:48,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:48,852 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:48,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:48,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:48,893 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:48,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:48,894 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:48,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:48,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:48,945 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:48,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:48,946 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:48,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:48,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,001 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,002 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,066 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,068 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,132 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,134 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,201 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,202 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,276 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,277 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,354 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,355 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,435 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,437 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,535 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,536 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,627 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,628 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,732 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,735 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,850 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,852 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:49,963 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:49,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:49,964 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:49,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:49,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:50,077 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:50,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:50,078 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:50,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:50,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:50,195 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:50,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:50,196 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:50,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:50,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:50,319 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:50,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:50,321 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:50,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:50,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:50,450 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:50,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:50,451 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:50,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:50,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:50,588 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:50,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:50,589 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:50,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:50,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:50,731 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:50,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:50,733 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:50,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:50,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:50,874 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:50,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:50,875 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:50,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:50,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:51,020 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:51,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:51,021 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:51,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:51,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:51,170 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:51,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:51,171 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:51,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:51,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:51,334 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:51,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:51,336 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:51,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:51,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:51,516 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:51,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:51,518 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:51,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:51,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:51,698 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:51,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:51,699 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:51,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:51,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:51,883 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:51,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:51,884 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:51,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:51,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:52,066 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:52,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:52,068 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:52,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:52,251 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:52,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:52,253 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:52,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:52,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:52,442 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:52,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:52,443 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:52,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:52,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:52,642 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:52,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:52,643 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:52,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:52,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:52,851 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:52,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:52,853 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:52,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:52,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:53,056 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:53,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:53,057 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:53,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:53,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:53,268 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:53,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:53,269 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:53,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:53,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:53,480 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:53,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:53,482 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:53,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:53,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:53,705 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:53,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:53,707 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:53,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:53,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:53,931 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:53,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:53,933 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:53,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:53,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:54,155 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:54,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:54,157 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:54,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:54,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:54,399 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:54,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:54,401 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:54,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:54,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:54,649 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:16:54,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:16:54,650 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:16:54,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:16:54,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:16:54,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:16:54,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:16:54,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701011680] [2021-04-16 07:16:54,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:16:54,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2021-04-16 07:16:54,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123585393] [2021-04-16 07:16:54,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-04-16 07:16:54,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:16:54,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-04-16 07:16:54,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2605, Unknown=0, NotChecked=0, Total=2756 [2021-04-16 07:16:54,898 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 49 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:10,547 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-04-16 07:17:11,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:17:11,077 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2021-04-16 07:17:11,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-04-16 07:17:11,079 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 1.02) internal successors, (51), 49 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2021-04-16 07:17:11,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:17:11,080 INFO L225 Difference]: With dead ends: 62 [2021-04-16 07:17:11,080 INFO L226 Difference]: Without dead ends: 57 [2021-04-16 07:17:11,080 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 15513.3ms TimeCoverageRelationStatistics Valid=396, Invalid=9704, Unknown=0, NotChecked=0, Total=10100 [2021-04-16 07:17:11,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-04-16 07:17:11,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-04-16 07:17:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 52 states have internal predecessors, (53), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:11,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2021-04-16 07:17:11,116 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2021-04-16 07:17:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:17:11,116 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2021-04-16 07:17:11,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 51 states, 50 states have (on average 1.02) internal successors, (51), 49 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2021-04-16 07:17:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-04-16 07:17:11,116 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:17:11,116 INFO L519 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:17:11,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-04-16 07:17:11,116 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:17:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:17:11,116 INFO L82 PathProgramCache]: Analyzing trace with hash -2000456137, now seen corresponding path program 44 times [2021-04-16 07:17:11,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:17:11,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788806727] [2021-04-16 07:17:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:17:11,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:17:11,125 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1171) InVars {main_~mid~0=v_main_~mid~0_1171} OutVars{main_~mid~0=v_main_~mid~0_1171} AuxVars[] AssignedVars[] [2021-04-16 07:17:11,127 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:17:11,128 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,134 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:17:11,137 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,138 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:17:11,141 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:17:11,147 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,151 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,155 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,159 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,163 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,167 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,170 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,173 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,176 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,180 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,181 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:17:11,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:11,219 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:17:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:17:11,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:11,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:17:11,237 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:17:11,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:17:11,259 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:17:11,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:17:11,305 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:17:11,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:17:11,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:17:11,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:17:11,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:11,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:17:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:17:11,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:17:11,390 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-04-16 07:17:11,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:11,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:11,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:17:11,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:11,434 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-04-16 07:17:11,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:11,468 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:11,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:11,711 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:11,712 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:11,747 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:11,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:11,786 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:11,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:11,824 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:11,826 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:11,866 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:11,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:11,911 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:11,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:11,957 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:11,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:12,005 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,006 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,054 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,056 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,107 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:12,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,162 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,217 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,218 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,275 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,276 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,335 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,336 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,396 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,398 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,460 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:12,529 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:12,600 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,601 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,669 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,670 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,740 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,741 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,812 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,813 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:12,887 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:12,963 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:12,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:13,041 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,042 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:13,120 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,121 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:13,202 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,203 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:13,286 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,287 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:13,373 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:13,462 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:13,553 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:13,648 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,649 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:13,743 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:13,840 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,841 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:13,941 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:13,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:14,043 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:14,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:14,149 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:14,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:14,254 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:14,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:14,363 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:14,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:14,476 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:14,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:14,590 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:14,591 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:17:14,708 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:14,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:14,825 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:17:14,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:17:14,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:14,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:14,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788806727] [2021-04-16 07:17:14,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:17:14,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2021-04-16 07:17:14,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207818172] [2021-04-16 07:17:14,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-04-16 07:17:14,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:17:14,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-04-16 07:17:14,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=2707, Unknown=1, NotChecked=0, Total=2862 [2021-04-16 07:17:14,944 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 52 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 50 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:23,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:17:23,420 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-04-16 07:17:23,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-04-16 07:17:23,422 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 50 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2021-04-16 07:17:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:17:23,423 INFO L225 Difference]: With dead ends: 63 [2021-04-16 07:17:23,423 INFO L226 Difference]: Without dead ends: 58 [2021-04-16 07:17:23,423 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1503 ImplicationChecksByTransitivity, 8377.3ms TimeCoverageRelationStatistics Valid=404, Invalid=10101, Unknown=1, NotChecked=0, Total=10506 [2021-04-16 07:17:23,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-04-16 07:17:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-04-16 07:17:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2021-04-16 07:17:23,461 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2021-04-16 07:17:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:17:23,461 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2021-04-16 07:17:23,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 50 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2021-04-16 07:17:23,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-04-16 07:17:23,462 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:17:23,462 INFO L519 BasicCegarLoop]: trace histogram [45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:17:23,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-04-16 07:17:23,462 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:17:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:17:23,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1850103025, now seen corresponding path program 45 times [2021-04-16 07:17:23,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:17:23,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502278107] [2021-04-16 07:17:23,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:17:23,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:17:23,471 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1220) InVars {main_~mid~0=v_main_~mid~0_1220} OutVars{main_~mid~0=v_main_~mid~0_1220} AuxVars[] AssignedVars[] [2021-04-16 07:17:23,473 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:17:23,474 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,480 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:17:23,484 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,485 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:17:23,489 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:17:23,493 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,497 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,502 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,506 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,512 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,515 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,519 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,523 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,527 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,530 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,531 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:17:23,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:17:23,577 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:17:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:17:23,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:23,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:17:23,594 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:17:23,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:17:23,618 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:17:23,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:17:23,645 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:17:23,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:17:23,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:17:23,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:17:23,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:23,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:17:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:17:23,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:17:23,733 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:17:23,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:23,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:17:23,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:23,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:23,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:23,783 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:23,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:23,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:23,835 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:23,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:23,837 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:23,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:23,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:23,901 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:23,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:23,902 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:23,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:23,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:23,967 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:23,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:23,969 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:23,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:23,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:24,051 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:24,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:24,053 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:24,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:24,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:24,141 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:24,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:24,142 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:24,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:24,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:24,240 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:24,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:24,241 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:24,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:24,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:24,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:24,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:24,363 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:24,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:24,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:24,485 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:24,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:24,486 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:24,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:24,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:24,609 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:24,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:24,611 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:24,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:24,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:24,736 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:24,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:24,738 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:24,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:24,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:24,882 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:24,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:24,884 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:24,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:24,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:25,037 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:25,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:25,039 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:25,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:25,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:25,203 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:25,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:25,205 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:25,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:25,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:25,365 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:25,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:25,367 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:25,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:25,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:25,542 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:25,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:25,544 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:25,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:25,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:25,710 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:25,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:25,712 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:25,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:25,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:25,897 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:25,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:25,899 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:25,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:25,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:26,106 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:26,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:26,108 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:26,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:26,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:26,329 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:26,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:26,331 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:26,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:26,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:26,555 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:26,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:26,557 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:26,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:26,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:26,788 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:26,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:26,789 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:26,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:26,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:27,026 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:27,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:27,028 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:27,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:27,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:27,261 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:27,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:27,263 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:27,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:27,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:27,511 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:27,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:27,513 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:27,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:27,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:27,763 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:27,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:27,765 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:27,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:27,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:28,035 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:28,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:28,036 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:28,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:28,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:28,294 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:28,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:28,296 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:28,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:28,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:28,568 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:28,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:28,570 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:28,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:28,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:28,853 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:28,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:28,854 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:28,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:28,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:29,120 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:29,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:29,122 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:29,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:29,411 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:29,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:29,412 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:29,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:29,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:29,718 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:29,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:29,719 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:29,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:29,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:30,033 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:30,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:30,035 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:30,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:30,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:30,368 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:30,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:30,370 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:30,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:30,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:30,684 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:30,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:30,686 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:30,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:30,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:31,014 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:31,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:31,015 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:31,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:31,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:31,370 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:31,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:31,372 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:31,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:31,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:31,638 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:31,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:31,639 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:31,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:31,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:31,901 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:31,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:31,902 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:31,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:31,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:32,167 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:32,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:32,169 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:32,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:32,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:32,453 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:32,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:32,454 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:32,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:32,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:32,752 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:32,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:32,753 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:32,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:32,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:33,050 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:33,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:33,052 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:33,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:33,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:33,376 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:17:33,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:33,379 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:17:33,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:17:33,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:17:33,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:33,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:33,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502278107] [2021-04-16 07:17:33,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:17:33,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2021-04-16 07:17:33,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114768643] [2021-04-16 07:17:33,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-04-16 07:17:33,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:17:33,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-04-16 07:17:33,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=2813, Unknown=0, NotChecked=0, Total=2970 [2021-04-16 07:17:33,739 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 53 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 51 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:17:50,741 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2021-04-16 07:17:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-04-16 07:17:50,743 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 51 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-04-16 07:17:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:17:50,744 INFO L225 Difference]: With dead ends: 64 [2021-04-16 07:17:50,744 INFO L226 Difference]: Without dead ends: 59 [2021-04-16 07:17:50,744 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 20001.3ms TimeCoverageRelationStatistics Valid=412, Invalid=10508, Unknown=0, NotChecked=0, Total=10920 [2021-04-16 07:17:50,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-04-16 07:17:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-04-16 07:17:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 54 states have internal predecessors, (55), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2021-04-16 07:17:50,781 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2021-04-16 07:17:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:17:50,782 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2021-04-16 07:17:50,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 51 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:17:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2021-04-16 07:17:50,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-04-16 07:17:50,782 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:17:50,782 INFO L519 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:17:50,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-04-16 07:17:50,782 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:17:50,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:17:50,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1484123849, now seen corresponding path program 46 times [2021-04-16 07:17:50,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:17:50,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023014533] [2021-04-16 07:17:50,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:17:50,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:17:50,791 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1270) InVars {main_~mid~0=v_main_~mid~0_1270} OutVars{main_~mid~0=v_main_~mid~0_1270} AuxVars[] AssignedVars[] [2021-04-16 07:17:50,793 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:17:50,797 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,801 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,805 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,809 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,813 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,814 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,819 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,825 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:17:50,826 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:17:50,831 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,835 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,840 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,844 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,847 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:17:50,853 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,854 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:17:50,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:17:50,899 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:17:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:17:50,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:50,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:17:50,914 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:17:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:17:50,934 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-04-16 07:17:50,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:17:50,973 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:17:50,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:17:50,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:17:50,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:50,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:17:51,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:51,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:51,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:17:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:17:51,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:51,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:17:51,040 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:17:51,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-16 07:17:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-16 07:17:51,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:51,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,078 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,116 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,118 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,167 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,168 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,221 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,223 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,286 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,288 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,352 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,354 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,422 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,423 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,499 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,501 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,579 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,580 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,670 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,672 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,759 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,760 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,859 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,860 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:51,971 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:51,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:51,973 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:51,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:51,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:52,084 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:52,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:52,086 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:52,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:52,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:52,198 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:52,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:52,199 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:52,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:52,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:52,318 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:52,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:52,319 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:52,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:52,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:52,450 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:52,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:52,452 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:52,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:52,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:52,582 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:52,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:52,583 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:52,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:52,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:52,728 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:52,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:52,729 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:52,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:52,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:52,878 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:52,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:52,880 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:52,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:52,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:53,034 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:53,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:53,035 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:53,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:53,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:53,194 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:53,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:53,196 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:53,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:53,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:53,359 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:53,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:53,360 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:53,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:53,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:53,533 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:53,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:53,535 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:53,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:53,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:53,715 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:53,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:53,717 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:53,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:53,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:53,905 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:53,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:53,906 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:53,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:53,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:54,111 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:54,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:54,112 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:54,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:54,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:54,303 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:54,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:54,305 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:54,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:54,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:54,504 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:54,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:54,505 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:54,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:54,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:54,720 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:54,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:54,722 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:54,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:54,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:54,921 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:54,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:54,922 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:54,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:54,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:55,165 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:55,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:55,167 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:55,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:55,402 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:55,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:55,404 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:55,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:55,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:55,620 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:55,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:55,622 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:55,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:55,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:55,846 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:55,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:55,847 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:55,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:55,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:56,085 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:56,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:56,087 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:56,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:56,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:56,353 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:56,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:56,355 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:56,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:56,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:56,610 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:56,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:56,611 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:56,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:56,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:56,859 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:56,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:56,861 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:56,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:56,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:57,153 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:57,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:57,155 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:57,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:57,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:57,447 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:57,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:57,449 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:57,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:57,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:57,733 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:57,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:57,735 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:57,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:57,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:58,015 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:58,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:58,016 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:58,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:58,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:58,306 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:58,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:58,308 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:58,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:58,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:58,601 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:58,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:58,603 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:58,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:58,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:58,907 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-04-16 07:17:58,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:17:58,909 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-04-16 07:17:58,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:17:58,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-04-16 07:17:59,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:17:59,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:17:59,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023014533] [2021-04-16 07:17:59,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:17:59,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2021-04-16 07:17:59,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890747612] [2021-04-16 07:17:59,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-04-16 07:17:59,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:17:59,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-04-16 07:17:59,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=2920, Unknown=0, NotChecked=0, Total=3080 [2021-04-16 07:17:59,202 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:18:19,036 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-04-16 07:18:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:18:19,770 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2021-04-16 07:18:19,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-04-16 07:18:19,774 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2021-04-16 07:18:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:18:19,774 INFO L225 Difference]: With dead ends: 65 [2021-04-16 07:18:19,774 INFO L226 Difference]: Without dead ends: 60 [2021-04-16 07:18:19,775 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1616 ImplicationChecksByTransitivity, 20273.2ms TimeCoverageRelationStatistics Valid=420, Invalid=10922, Unknown=0, NotChecked=0, Total=11342 [2021-04-16 07:18:19,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-04-16 07:18:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-04-16 07:18:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:18:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2021-04-16 07:18:19,814 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2021-04-16 07:18:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:18:19,814 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2021-04-16 07:18:19,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:18:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2021-04-16 07:18:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-04-16 07:18:19,814 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:18:19,814 INFO L519 BasicCegarLoop]: trace histogram [47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:18:19,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-04-16 07:18:19,815 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:18:19,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:18:19,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1271296015, now seen corresponding path program 47 times [2021-04-16 07:18:19,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:18:19,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578010825] [2021-04-16 07:18:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:18:19,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:18:19,824 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1321) InVars {main_~mid~0=v_main_~mid~0_1321} OutVars{main_~mid~0=v_main_~mid~0_1321} AuxVars[] AssignedVars[] [2021-04-16 07:18:19,826 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:18:19,831 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,837 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,841 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,846 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,851 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,852 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,858 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,864 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:18:19,865 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:18:19,871 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:18:19,876 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,881 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,886 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,892 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,899 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,901 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:18:19,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:18:19,964 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:18:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:18:19,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:18:19,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:19,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:18:19,984 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:18:19,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:18:20,012 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:18:20,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:18:20,044 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:18:20,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:18:20,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:20,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:18:20,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:20,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:18:20,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:20,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:18:20,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:18:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:18:20,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:18:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:18:20,161 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:18:20,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:20,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:18:20,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:18:20,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:20,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:20,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:20,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:20,292 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:20,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,294 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:20,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:20,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:20,377 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:20,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,379 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:20,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:20,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:20,469 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:20,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,471 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:20,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:20,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:20,578 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:20,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:20,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:20,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:20,684 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:20,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,686 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:20,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:20,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:20,806 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:20,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,808 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:20,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:20,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:20,944 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:20,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:20,946 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:20,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:20,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:21,103 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:21,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:21,105 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:21,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:21,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:21,248 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:21,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:21,249 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:21,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:21,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:21,375 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:21,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:21,376 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:21,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:21,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:21,509 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:21,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:21,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:21,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:21,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:21,662 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:21,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:21,664 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:21,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:21,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:21,841 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:21,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:21,843 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:21,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:21,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:22,001 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:22,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:22,002 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:22,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:22,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:22,166 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:22,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:22,167 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:22,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:22,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:22,335 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:22,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:22,337 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:22,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:22,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:22,505 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:22,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:22,506 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:22,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:22,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:22,695 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:22,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:22,697 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:22,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:22,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:22,884 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:22,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:22,886 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:22,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:22,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:23,149 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:23,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:23,151 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:23,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:23,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:23,430 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:23,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:23,432 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:23,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:23,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:23,707 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:23,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:23,709 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:23,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:23,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:23,991 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:23,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:23,993 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:23,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:23,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:24,324 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:24,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:24,326 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:24,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:24,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:24,657 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:24,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:24,659 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:24,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:24,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:24,988 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:24,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:24,990 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:24,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:24,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:25,332 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:25,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:25,334 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:25,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:25,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:25,660 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:25,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:25,662 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:25,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:25,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:26,033 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:26,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:26,035 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:26,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:26,423 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:26,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:26,425 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:26,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:26,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:26,849 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:26,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:26,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:26,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:26,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:27,277 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:27,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:27,279 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:27,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:27,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:27,728 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:27,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:27,731 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:27,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:27,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:28,177 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:28,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:28,179 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:28,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:28,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:28,613 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:28,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:28,630 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:28,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:28,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:29,081 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:29,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:29,084 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:29,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:29,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:29,524 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:29,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:29,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:29,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:29,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:29,987 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:29,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:29,989 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:29,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:29,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:30,437 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:30,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:30,439 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:30,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:30,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:30,936 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:30,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:30,938 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:30,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:30,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:31,449 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:31,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:31,451 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:31,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:31,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:31,973 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:31,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:31,976 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:31,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:31,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:32,492 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:32,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:32,494 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:32,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:32,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:33,047 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:33,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:33,049 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:33,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:33,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:33,613 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:33,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:33,615 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:33,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:33,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:34,182 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:18:34,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:18:34,184 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:18:34,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:18:34,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:18:34,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:18:34,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:18:34,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578010825] [2021-04-16 07:18:34,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:18:34,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2021-04-16 07:18:34,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21638586] [2021-04-16 07:18:34,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-04-16 07:18:34,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:18:34,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-04-16 07:18:34,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=3029, Unknown=0, NotChecked=0, Total=3192 [2021-04-16 07:18:34,793 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 53 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:19:06,199 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-04-16 07:19:07,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:19:07,139 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2021-04-16 07:19:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-04-16 07:19:07,144 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 53 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-04-16 07:19:07,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:19:07,144 INFO L225 Difference]: With dead ends: 66 [2021-04-16 07:19:07,144 INFO L226 Difference]: Without dead ends: 61 [2021-04-16 07:19:07,145 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1674 ImplicationChecksByTransitivity, 34081.9ms TimeCoverageRelationStatistics Valid=428, Invalid=11344, Unknown=0, NotChecked=0, Total=11772 [2021-04-16 07:19:07,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-04-16 07:19:07,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-04-16 07:19:07,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 56 states have internal predecessors, (57), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:19:07,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2021-04-16 07:19:07,189 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2021-04-16 07:19:07,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:19:07,190 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2021-04-16 07:19:07,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 53 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:19:07,190 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2021-04-16 07:19:07,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-04-16 07:19:07,190 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:19:07,190 INFO L519 BasicCegarLoop]: trace histogram [48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:19:07,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-04-16 07:19:07,190 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:19:07,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:19:07,191 INFO L82 PathProgramCache]: Analyzing trace with hash 789965879, now seen corresponding path program 48 times [2021-04-16 07:19:07,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:19:07,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79982175] [2021-04-16 07:19:07,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:19:07,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:19:07,202 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1373) InVars {main_~mid~0=v_main_~mid~0_1373} OutVars{main_~mid~0=v_main_~mid~0_1373} AuxVars[] AssignedVars[] [2021-04-16 07:19:07,205 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:19:07,207 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,214 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,224 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:19:07,226 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:19:07,232 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:19:07,239 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,248 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,256 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,263 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,274 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,281 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,288 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,294 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,302 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,309 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,310 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:19:07,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:07,398 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:19:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:19:07,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:19:07,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:19:07,425 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:19:07,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:19:07,467 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:19:07,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:19:07,516 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:19:07,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:19:07,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:19:07,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:19:07,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:19:07,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:19:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:19:07,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:19:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:19:07,682 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:19:07,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:07,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:19:07,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:19:07,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:07,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:07,762 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:07,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:07,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:07,848 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:07,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:07,851 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:07,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:07,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:07,943 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:07,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:07,945 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:07,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:07,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:08,068 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:08,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:08,070 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:08,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:08,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:08,195 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:08,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:08,197 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:08,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:08,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:08,326 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:08,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:08,328 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:08,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:08,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:08,450 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:08,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:08,452 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:08,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:08,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:08,595 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:08,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:08,598 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:08,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:08,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:08,737 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:08,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:08,739 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:08,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:08,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:08,884 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:08,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:08,886 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:08,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:08,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:09,052 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:09,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:09,054 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:09,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:09,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:09,215 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:09,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:09,218 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:09,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:09,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:09,414 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:09,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:09,416 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:09,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:09,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:09,625 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:09,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:09,627 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:09,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:09,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:09,836 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:09,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:09,838 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:09,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:09,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:10,029 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:10,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:10,031 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:10,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:10,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:10,243 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:10,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:10,245 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:10,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:10,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:10,455 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:10,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:10,458 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:10,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:10,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:10,699 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:10,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:10,701 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:10,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:10,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:10,930 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:10,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:10,932 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:10,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:10,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:11,187 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:11,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:11,189 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:11,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:11,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:11,473 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:11,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:11,476 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:11,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:11,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:11,791 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:11,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:11,793 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:11,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:11,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:12,104 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:12,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:12,106 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:12,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:12,384 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:12,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:12,387 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:12,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:12,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:12,728 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:12,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:12,730 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:12,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:12,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:13,031 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:13,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:13,033 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:13,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:13,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:13,391 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:13,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:13,394 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:13,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:13,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:13,715 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:13,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:13,717 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:13,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:13,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:14,089 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:14,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:14,092 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:14,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:14,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:14,464 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:14,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:14,466 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:14,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:14,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:14,866 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:14,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:14,869 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:14,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:14,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:15,228 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:15,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:15,230 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:15,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:15,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:15,641 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:15,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:15,643 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:15,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:15,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:16,084 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:16,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:16,087 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:16,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:16,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:16,492 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:16,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:16,495 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:16,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:16,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:16,967 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:16,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:16,971 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:16,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:16,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:17,396 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:17,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:17,399 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:17,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:17,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:17,806 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:17,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:17,808 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:17,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:17,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:18,229 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:18,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:18,232 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:18,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:18,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:18,747 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:18,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:18,749 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:18,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:18,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:19,230 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:19,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:19,232 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:19,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:19,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:19,737 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:19,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:19,740 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:19,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:19,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:20,257 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:20,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:20,260 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:20,768 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:20,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:20,770 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:20,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:20,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:21,375 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:21,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:21,378 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:21,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:21,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:21,944 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:21,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:21,946 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:21,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:21,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:22,543 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:19:22,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:22,545 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:19:22,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:22,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:19:23,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:23,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:19:23,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79982175] [2021-04-16 07:19:23,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:19:23,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2021-04-16 07:19:23,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167055170] [2021-04-16 07:19:23,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-04-16 07:19:23,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:19:23,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-04-16 07:19:23,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=3140, Unknown=0, NotChecked=0, Total=3306 [2021-04-16 07:19:23,202 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 54 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:19:27,405 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:19:46,232 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:19:54,813 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-04-16 07:19:55,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:19:55,714 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-04-16 07:19:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-04-16 07:19:55,718 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 54 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2021-04-16 07:19:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:19:55,718 INFO L225 Difference]: With dead ends: 67 [2021-04-16 07:19:55,718 INFO L226 Difference]: Without dead ends: 62 [2021-04-16 07:19:55,719 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1733 ImplicationChecksByTransitivity, 34013.4ms TimeCoverageRelationStatistics Valid=436, Invalid=11774, Unknown=0, NotChecked=0, Total=12210 [2021-04-16 07:19:55,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-04-16 07:19:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-04-16 07:19:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 57 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:19:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2021-04-16 07:19:55,765 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2021-04-16 07:19:55,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:19:55,765 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2021-04-16 07:19:55,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 54 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:19:55,765 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2021-04-16 07:19:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-04-16 07:19:55,766 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:19:55,766 INFO L519 BasicCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:19:55,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-04-16 07:19:55,766 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:19:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:19:55,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1246366449, now seen corresponding path program 49 times [2021-04-16 07:19:55,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:19:55,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821771241] [2021-04-16 07:19:55,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:19:55,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:19:55,777 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1426) InVars {main_~mid~0=v_main_~mid~0_1426} OutVars{main_~mid~0=v_main_~mid~0_1426} AuxVars[] AssignedVars[] [2021-04-16 07:19:55,780 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:19:55,781 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,789 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:19:55,795 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,797 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:19:55,803 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:19:55,809 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,816 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,821 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,828 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,837 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,843 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,848 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,854 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,860 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,865 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,867 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:19:55,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:19:55,941 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:19:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:19:55,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:19:55,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:55,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:19:55,966 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:19:55,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:19:56,000 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:19:56,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:19:56,038 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:19:56,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:19:56,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:56,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:19:56,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:56,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:19:56,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:56,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:19:56,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:19:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:19:56,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:56,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:19:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:19:56,191 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:19:56,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:56,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:56,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:19:56,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:19:56,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:19:56,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:56,276 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:56,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:56,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:56,370 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:56,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:56,373 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:56,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:56,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:56,482 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:56,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:56,484 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:56,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:56,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:56,617 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:56,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:56,619 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:56,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:56,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:56,748 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:56,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:56,751 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:56,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:56,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:56,896 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:56,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:56,899 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:56,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:56,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:57,074 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:57,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:57,077 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:57,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:57,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:57,250 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:57,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:57,252 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:57,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:57,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:57,448 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:57,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:57,450 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:57,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:57,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:57,639 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:57,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:57,641 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:57,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:57,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:57,837 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:57,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:57,840 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:57,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:57,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:58,058 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:58,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:58,061 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:58,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:58,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:58,273 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:58,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:58,275 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:58,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:58,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:58,521 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:58,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:58,524 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:58,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:58,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:58,771 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:58,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:58,773 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:58,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:58,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:59,035 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:59,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:59,038 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:59,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:59,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:59,273 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:59,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:59,275 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:59,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:59,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:59,546 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:59,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:59,548 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:59,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:59,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:19:59,818 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:19:59,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:19:59,820 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:19:59,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:19:59,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:00,132 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:00,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:00,135 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:00,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:00,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:00,473 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:00,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:00,475 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:00,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:00,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:00,835 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:00,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:00,837 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:00,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:00,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:01,201 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:01,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:01,204 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:01,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:01,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:01,576 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:01,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:01,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:01,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:01,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:01,988 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:01,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:01,990 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:01,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:01,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:02,383 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:02,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:02,386 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:02,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:02,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:02,810 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:02,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:02,813 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:02,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:02,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:03,292 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:03,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:03,295 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:03,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:03,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:03,879 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:03,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:03,882 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:03,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:03,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:04,491 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:04,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:04,494 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:04,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:04,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:05,086 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:05,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:05,089 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:05,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:05,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:05,709 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:05,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:05,711 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:05,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:05,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:06,330 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:06,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:06,333 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:06,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:06,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:06,998 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:06,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:07,001 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:07,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:07,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:07,672 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:07,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:07,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:07,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:07,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:08,377 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:08,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:08,380 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:08,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:08,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:09,086 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:09,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:09,089 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:09,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:09,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:09,808 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:09,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:09,811 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:09,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:09,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:10,504 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:10,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:10,507 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:10,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:10,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:11,185 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:11,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:11,188 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:11,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:11,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:11,908 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:11,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:11,910 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:11,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:11,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:12,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:12,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:12,726 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:12,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:12,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:13,494 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:13,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:13,497 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:13,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:13,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:14,282 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:14,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:14,285 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:14,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:14,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:15,112 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:15,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:15,115 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:15,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:15,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:15,949 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:15,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:15,952 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:15,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:15,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:16,785 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:16,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:16,788 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:16,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:16,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:17,629 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:17,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:17,645 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:17,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:17,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:18,568 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:20:18,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:20:18,571 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:20:18,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:20:18,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:20:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:20:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:20:19,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821771241] [2021-04-16 07:20:19,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:20:19,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2021-04-16 07:20:19,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513585686] [2021-04-16 07:20:19,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-04-16 07:20:19,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:20:19,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-04-16 07:20:19,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=3253, Unknown=0, NotChecked=0, Total=3422 [2021-04-16 07:20:19,448 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 55 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:20:20,708 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-16 07:20:21,531 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-16 07:20:22,457 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-16 07:20:23,427 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:24,386 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:25,377 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:26,230 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:27,203 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:28,326 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:30,092 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:30,951 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:31,847 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:32,918 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:33,858 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:34,947 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:35,783 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:36,659 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:37,684 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:38,815 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:39,741 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:40,686 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:42,964 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:45,219 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:46,980 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:47,912 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:48,793 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:49,750 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:50,513 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:52,040 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:54,599 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:56,399 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:57,977 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:20:58,760 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:00,342 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:02,556 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:04,470 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-04-16 07:21:05,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:21:05,583 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2021-04-16 07:21:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-04-16 07:21:05,589 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 55 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2021-04-16 07:21:05,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:21:05,589 INFO L225 Difference]: With dead ends: 68 [2021-04-16 07:21:05,589 INFO L226 Difference]: Without dead ends: 63 [2021-04-16 07:21:05,590 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1793 ImplicationChecksByTransitivity, 50687.5ms TimeCoverageRelationStatistics Valid=444, Invalid=12212, Unknown=0, NotChecked=0, Total=12656 [2021-04-16 07:21:05,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-04-16 07:21:05,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-04-16 07:21:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 58 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:21:05,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2021-04-16 07:21:05,647 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2021-04-16 07:21:05,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:21:05,647 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2021-04-16 07:21:05,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 55 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:21:05,647 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2021-04-16 07:21:05,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-04-16 07:21:05,647 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:21:05,648 INFO L519 BasicCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:21:05,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-04-16 07:21:05,648 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:21:05,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:21:05,648 INFO L82 PathProgramCache]: Analyzing trace with hash 51840823, now seen corresponding path program 50 times [2021-04-16 07:21:05,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:21:05,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672370331] [2021-04-16 07:21:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:21:05,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:21:05,662 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1480) InVars {main_~mid~0=v_main_~mid~0_1480} OutVars{main_~mid~0=v_main_~mid~0_1480} AuxVars[] AssignedVars[] [2021-04-16 07:21:05,665 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:21:05,673 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,681 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,688 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,695 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,703 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,705 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,716 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:21:05,723 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,725 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:21:05,733 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,742 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,750 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,757 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:21:05,766 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,779 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,781 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:21:05,882 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-04-16 07:21:05,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:21:05,888 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:21:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:21:05,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:21:05,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:05,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:21:05,918 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:21:05,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:21:05,960 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-16 07:21:05,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:21:06,065 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-16 07:21:06,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:21:06,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:06,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:21:06,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:06,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:21:06,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:06,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:21:06,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:21:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:21:06,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:06,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:21:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:21:06,238 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:21:06,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:06,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:06,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:21:06,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:21:06,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:06,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:06,336 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:06,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:06,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:06,431 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:06,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:06,434 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:06,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:06,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:06,552 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:06,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:06,554 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:06,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:06,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:06,682 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:06,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:06,684 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:06,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:06,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:06,844 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:06,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:06,847 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:06,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:06,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:07,012 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:07,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:07,015 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:07,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:07,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:07,242 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:07,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:07,245 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:07,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:07,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:07,471 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:07,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:07,474 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:07,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:07,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:07,714 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:07,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:07,717 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:07,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:07,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:07,956 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:07,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:07,959 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:07,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:07,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:08,220 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:08,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:08,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:08,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:08,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:08,501 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:08,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:08,504 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:08,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:08,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:08,789 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:08,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:08,792 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:08,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:08,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:09,101 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:09,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:09,104 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:09,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:09,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:09,400 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:09,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:09,403 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:09,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:09,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:09,759 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:09,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:09,762 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:09,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:09,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:10,102 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:10,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:10,105 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:10,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:10,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:10,452 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:10,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:10,455 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:10,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:10,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:10,828 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:10,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:10,831 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:10,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:10,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:11,198 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:11,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:11,202 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:11,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:11,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:11,611 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:11,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:11,614 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:11,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:11,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:12,056 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:12,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:12,058 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:12,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:12,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:12,541 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:12,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:12,544 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:12,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:12,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:12,980 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:12,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:12,983 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:12,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:13,454 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:13,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:13,457 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:13,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:13,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:13,970 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:13,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:13,973 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:13,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:13,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:14,488 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:14,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:14,491 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:14,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:14,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:15,005 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:15,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:15,008 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:15,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:15,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:15,558 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:15,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:15,560 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:15,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:15,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:16,087 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:16,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:16,099 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:16,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:16,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:16,697 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:16,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:16,701 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:16,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:16,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:17,292 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:17,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:17,295 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:17,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:17,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:17,911 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:17,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:17,914 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:17,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:17,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:18,598 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:18,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:18,602 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:18,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:18,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:19,255 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:19,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:19,258 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:19,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:19,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:19,915 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:19,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:19,917 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:19,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:19,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:20,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:20,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:20,560 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:20,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:20,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:21,213 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:21,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:21,216 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:21,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:21,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:21,989 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:21,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:21,992 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:21,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:21,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:22,841 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:22,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:22,845 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:22,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:22,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:23,688 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:23,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:23,691 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:23,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:23,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:24,552 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:24,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:24,555 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:24,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:24,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:25,467 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:25,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:25,470 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:25,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:25,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:26,400 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:26,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:26,403 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:26,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:26,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:27,325 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:27,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:27,328 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:27,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:27,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:28,117 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:28,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:28,121 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:28,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:28,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:28,918 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:28,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:28,920 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:28,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:28,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:29,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:29,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:29,726 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:29,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:29,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:30,544 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:30,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:30,546 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:30,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:30,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:31,358 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:21:31,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:21:31,361 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:21:31,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:21:31,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:21:32,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:21:32,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:21:32,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672370331] [2021-04-16 07:21:32,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:21:32,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2021-04-16 07:21:32,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003594421] [2021-04-16 07:21:32,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-04-16 07:21:32,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:21:32,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-04-16 07:21:32,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=3368, Unknown=0, NotChecked=0, Total=3540 [2021-04-16 07:21:32,265 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 56 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:21:34,521 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-16 07:21:35,543 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-16 07:21:36,518 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:37,585 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:38,577 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:39,673 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:40,462 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:41,342 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:42,421 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:43,282 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:44,336 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:45,412 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:46,379 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:47,456 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:48,551 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:49,706 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:50,698 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:51,731 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:52,870 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:53,834 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:54,946 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:56,065 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:57,220 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:58,222 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:21:59,248 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:00,421 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:01,352 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:02,336 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:03,329 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:04,561 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:05,741 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:06,844 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:07,917 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:09,047 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:10,044 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:11,060 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:12,121 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:13,229 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:14,393 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:15,558 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:16,808 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:17,971 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:19,058 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:20,186 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:21,310 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:22,579 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:23,906 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:25,248 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:26,459 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:27,684 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:22:29,493 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-04-16 07:22:31,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:22:31,108 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2021-04-16 07:22:31,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-04-16 07:22:31,116 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 56 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2021-04-16 07:22:31,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:22:31,117 INFO L225 Difference]: With dead ends: 69 [2021-04-16 07:22:31,117 INFO L226 Difference]: Without dead ends: 64 [2021-04-16 07:22:31,118 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 61072.9ms TimeCoverageRelationStatistics Valid=452, Invalid=12658, Unknown=0, NotChecked=0, Total=13110 [2021-04-16 07:22:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-04-16 07:22:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-04-16 07:22:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 59 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:22:31,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2021-04-16 07:22:31,178 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2021-04-16 07:22:31,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:22:31,179 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2021-04-16 07:22:31,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 56 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:22:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2021-04-16 07:22:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-04-16 07:22:31,179 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:22:31,179 INFO L519 BasicCegarLoop]: trace histogram [51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:22:31,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-04-16 07:22:31,179 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:22:31,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:22:31,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1641560591, now seen corresponding path program 51 times [2021-04-16 07:22:31,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:22:31,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377849125] [2021-04-16 07:22:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:22:31,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:22:31,198 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1535) InVars {main_~mid~0=v_main_~mid~0_1535} OutVars{main_~mid~0=v_main_~mid~0_1535} AuxVars[] AssignedVars[] [2021-04-16 07:22:31,201 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:22:31,204 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,218 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:22:31,229 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,231 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:22:31,242 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:22:31,258 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,271 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,282 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,293 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,306 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,316 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,326 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,341 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,352 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,363 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,366 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:22:31,522 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-04-16 07:22:31,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:31,533 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:22:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:22:31,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:22:31,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:22:31,575 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:22:31,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:22:31,643 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:22:31,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:22:31,720 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:22:31,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:22:31,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:22:31,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:22:31,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:22:31,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:22:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:22:31,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:31,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:22:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:22:31,995 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:22:31,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:31,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:32,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:22:32,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-16 07:22:32,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:22:32,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:32,108 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:32,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:32,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:32,240 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:32,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:32,244 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:32,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:32,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:32,392 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:32,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:32,396 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:32,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:32,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:32,569 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:32,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:32,572 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:32,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:32,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:32,741 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:32,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:32,744 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:32,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:32,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:32,961 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:32,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:32,964 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:32,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:32,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:33,203 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:33,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:33,207 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:33,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:33,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:33,449 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:33,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:33,453 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:33,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:33,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:33,695 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:33,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:33,699 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:33,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:33,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:33,956 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:33,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:33,959 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:33,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:33,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:34,266 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:34,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:34,270 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:34,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:34,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:34,573 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:34,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:34,576 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:34,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:34,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:34,863 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:34,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:34,866 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:34,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:34,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:35,169 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:35,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:35,172 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:35,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:35,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:35,579 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:35,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:35,583 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:35,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:35,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:35,930 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:35,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:35,934 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:35,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:36,295 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:36,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:36,299 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:36,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:36,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:36,675 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:36,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:36,678 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:36,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:36,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:37,162 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:37,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:37,166 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:37,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:37,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:37,635 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:37,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:37,638 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:37,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:37,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:38,078 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:38,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:38,081 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:38,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:38,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:38,582 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:38,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:38,586 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:38,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:38,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:39,025 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:39,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:39,029 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:39,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:39,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:39,489 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:39,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:39,493 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:39,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:39,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:40,023 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:40,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:40,026 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:40,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:40,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:40,566 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:40,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:40,570 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:40,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:40,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:41,100 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:41,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:41,103 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:41,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:41,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:41,598 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:41,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:41,601 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:41,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:41,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:42,101 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:42,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:42,105 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:42,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:42,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:42,667 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:42,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:42,670 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:42,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:42,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:43,253 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:43,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:43,257 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:43,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:43,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:43,889 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:43,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:43,893 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:43,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:43,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:44,485 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:44,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:44,489 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:44,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:44,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:45,109 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:45,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:45,112 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:45,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:45,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:45,856 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:45,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:45,860 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:45,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:45,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:46,556 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:46,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:46,559 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:46,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:46,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:47,405 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:47,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:47,409 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:47,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:47,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:48,150 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:48,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:48,153 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:48,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:48,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:49,014 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:49,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:49,019 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:49,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:49,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:49,800 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:49,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:49,803 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:49,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:49,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:50,537 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:50,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:50,541 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:50,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:50,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:51,249 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:51,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:51,252 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:51,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:51,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:52,123 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:52,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:52,127 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:52,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:52,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:52,980 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:52,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:52,983 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:52,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:52,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:53,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:53,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:53,727 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:53,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:53,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:54,531 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:54,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:54,534 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:54,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:54,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:55,369 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:55,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:55,372 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:55,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:55,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:56,298 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:56,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:56,302 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:56,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:56,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:57,331 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:57,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:57,335 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:57,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:57,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:58,268 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:58,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:58,272 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:58,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:58,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:22:59,245 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-04-16 07:22:59,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:22:59,249 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-04-16 07:22:59,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:22:59,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-04-16 07:23:00,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:23:00,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:23:00,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377849125] [2021-04-16 07:23:00,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:23:00,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2021-04-16 07:23:00,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617256394] [2021-04-16 07:23:00,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-04-16 07:23:00,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:23:00,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-04-16 07:23:00,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=3485, Unknown=0, NotChecked=0, Total=3660 [2021-04-16 07:23:00,215 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 57 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:23:02,062 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-16 07:23:03,061 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-16 07:23:04,161 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:05,350 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:06,532 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:07,752 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:08,787 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:09,770 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:10,745 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:11,818 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:12,911 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:13,963 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:15,106 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:16,205 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:17,292 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:18,493 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:19,552 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:20,513 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:21,581 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:22,505 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:23,678 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:24,655 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:25,714 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:26,945 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:28,137 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:29,389 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:30,475 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:31,538 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:32,607 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:33,860 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:35,196 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:36,316 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:37,673 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:39,053 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:40,107 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:41,207 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:42,378 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:43,436 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:44,642 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:45,798 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:46,931 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:48,221 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:49,588 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:50,606 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:51,790 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:52,848 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:54,098 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:55,367 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:56,648 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:57,941 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:23:59,226 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:24:00,704 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2021-04-16 07:24:02,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:24:02,312 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2021-04-16 07:24:02,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-04-16 07:24:02,321 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 57 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-04-16 07:24:02,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:24:02,322 INFO L225 Difference]: With dead ends: 70 [2021-04-16 07:24:02,322 INFO L226 Difference]: Without dead ends: 65 [2021-04-16 07:24:02,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1916 ImplicationChecksByTransitivity, 63810.5ms TimeCoverageRelationStatistics Valid=460, Invalid=13112, Unknown=0, NotChecked=0, Total=13572 [2021-04-16 07:24:02,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-04-16 07:24:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-04-16 07:24:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:24:02,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2021-04-16 07:24:02,385 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2021-04-16 07:24:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:24:02,385 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2021-04-16 07:24:02,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 57 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:24:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2021-04-16 07:24:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-04-16 07:24:02,386 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:24:02,386 INFO L519 BasicCegarLoop]: trace histogram [52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:24:02,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-04-16 07:24:02,386 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:24:02,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:24:02,386 INFO L82 PathProgramCache]: Analyzing trace with hash -616734153, now seen corresponding path program 52 times [2021-04-16 07:24:02,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:24:02,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131643110] [2021-04-16 07:24:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:24:02,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:24:02,406 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1591) InVars {main_~mid~0=v_main_~mid~0_1591} OutVars{main_~mid~0=v_main_~mid~0_1591} AuxVars[] AssignedVars[] [2021-04-16 07:24:02,410 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:24:02,421 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,433 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,443 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,453 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,464 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,468 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,485 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:24:02,495 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,498 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:24:02,511 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,522 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:24:02,533 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,545 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,556 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,573 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,576 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:24:02,717 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-04-16 07:24:02,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:24:02,725 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:24:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:24:02,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:24:02,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:24:02,762 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:24:02,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:24:02,822 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:24:02,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:24:02,899 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:24:02,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:24:02,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:24:02,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:02,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:24:03,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:03,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:24:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:24:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:24:03,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:03,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:24:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:24:03,164 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-04-16 07:24:03,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:03,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:03,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 07:24:03,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:24:03,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:03,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:03,312 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:03,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:03,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:03,470 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:03,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:03,473 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:03,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:03,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:03,661 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:03,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:03,665 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:03,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:03,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:03,898 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:03,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:03,902 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:03,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:03,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:04,144 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:04,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:04,148 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:04,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:04,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:04,414 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:04,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:04,418 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:04,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:04,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:04,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:04,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:04,727 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:04,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:04,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:05,044 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:05,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:05,048 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:05,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:05,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:05,369 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:05,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:05,373 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:05,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:05,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:05,774 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:05,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:05,778 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:05,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:05,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:06,172 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:06,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:06,175 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:06,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:06,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:06,555 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:06,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:06,559 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:06,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:06,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:06,975 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:06,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:06,980 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:06,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:06,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:07,511 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:07,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:07,515 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:07,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:07,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:07,973 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:07,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:07,977 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:07,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:07,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:08,528 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:08,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:08,532 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:08,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:08,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:09,053 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:09,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:09,056 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:09,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:09,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:09,581 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:09,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:09,585 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:09,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:10,168 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:10,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:10,172 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:10,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:10,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:10,696 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:10,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:10,699 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:10,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:10,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:11,268 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:11,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:11,272 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:11,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:11,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:11,937 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:11,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:11,940 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:11,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:11,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:12,625 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:12,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:12,629 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:12,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:12,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:13,291 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:13,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:13,295 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:13,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:13,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:14,017 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:14,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:14,021 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:14,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:14,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:14,733 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:14,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:14,737 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:14,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:14,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:15,555 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:15,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:15,559 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:15,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:15,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:16,324 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:16,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:16,327 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:16,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:16,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:17,117 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:17,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:17,121 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:17,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:17,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:17,889 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:17,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:17,893 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:17,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:17,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:18,785 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:18,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:18,789 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:18,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:18,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:19,689 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:19,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:19,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:19,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:19,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:20,687 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:20,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:20,691 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:20,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:20,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:21,604 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:21,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:21,609 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:21,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:21,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:22,577 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:22,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:22,582 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:22,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:22,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:23,640 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:23,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:23,644 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:23,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:23,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:24,673 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:24,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:24,676 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:24,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:24,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:25,817 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:25,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:25,821 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:25,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:25,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:27,034 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:27,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:27,038 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:27,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:27,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:28,128 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:28,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:28,132 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:28,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:28,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:29,241 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:29,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:29,245 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:29,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:29,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:30,510 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:30,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:30,514 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:30,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:30,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:31,677 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:31,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:31,680 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:31,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:31,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:32,875 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:32,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:32,879 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:32,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:32,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:34,233 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:34,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:34,237 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:34,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:34,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:35,527 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:35,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:35,531 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:35,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:35,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:36,797 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:36,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:36,801 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:36,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:36,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:38,208 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:38,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:38,212 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:38,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:38,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:39,574 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:39,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:39,578 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:39,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:39,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:40,914 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:40,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:40,918 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:40,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:40,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:42,302 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:42,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:42,306 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:42,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:42,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:43,552 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-04-16 07:24:43,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:24:43,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-04-16 07:24:43,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 07:24:43,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 07:24:45,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:24:45,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:24:45,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131643110] [2021-04-16 07:24:45,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:24:45,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2021-04-16 07:24:45,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477672170] [2021-04-16 07:24:45,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-04-16 07:24:45,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:24:45,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-04-16 07:24:45,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=3604, Unknown=0, NotChecked=0, Total=3782 [2021-04-16 07:24:45,069 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand has 60 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 58 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:24:47,147 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-16 07:24:48,441 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-04-16 07:24:49,719 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-16 07:24:50,861 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:24:51,980 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:24:53,125 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:24:54,271 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:24:55,495 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:24:56,668 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:24:57,893 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:24:58,933 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:00,074 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:01,430 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:02,977 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:04,490 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:05,920 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:07,134 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:08,139 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:09,182 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:10,312 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:11,320 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:12,439 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:13,506 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:14,809 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:15,938 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:16,978 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:18,301 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:19,433 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:20,661 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:21,691 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:22,703 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:23,826 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:25,062 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:26,234 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:27,590 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:28,754 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:29,975 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:31,042 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:32,067 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:33,620 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:35,107 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:36,552 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:37,889 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:39,031 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:40,285 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:41,346 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:42,579 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:43,645 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:44,701 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:45,884 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:47,187 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:48,426 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:49,638 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:25:51,083 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-04-16 07:25:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:25:52,776 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2021-04-16 07:25:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-04-16 07:25:52,784 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 58 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2021-04-16 07:25:52,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:25:52,785 INFO L225 Difference]: With dead ends: 71 [2021-04-16 07:25:52,785 INFO L226 Difference]: Without dead ends: 66 [2021-04-16 07:25:52,786 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1979 ImplicationChecksByTransitivity, 82727.3ms TimeCoverageRelationStatistics Valid=468, Invalid=13574, Unknown=0, NotChecked=0, Total=14042 [2021-04-16 07:25:52,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-04-16 07:25:52,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-04-16 07:25:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 61 states have (on average 1.0163934426229508) internal successors, (62), 61 states have internal predecessors, (62), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:25:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2021-04-16 07:25:52,844 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 64 [2021-04-16 07:25:52,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:25:52,844 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2021-04-16 07:25:52,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 60 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 58 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:25:52,844 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2021-04-16 07:25:52,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-04-16 07:25:52,844 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:25:52,844 INFO L519 BasicCegarLoop]: trace histogram [53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:25:52,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-04-16 07:25:52,844 INFO L428 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:25:52,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:25:52,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1904394481, now seen corresponding path program 53 times [2021-04-16 07:25:52,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:25:52,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232974792] [2021-04-16 07:25:52,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:25:52,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:25:52,863 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1648) InVars {main_~mid~0=v_main_~mid~0_1648} OutVars{main_~mid~0=v_main_~mid~0_1648} AuxVars[] AssignedVars[] [2021-04-16 07:25:52,866 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:25:52,876 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,887 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,897 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,906 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,916 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,919 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,935 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:25:52,946 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,949 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:25:52,967 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,978 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,988 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:52,999 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,009 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:25:53,022 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,024 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 48 [2021-04-16 07:25:53,158 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-04-16 07:25:53,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-04-16 07:25:53,166 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:25:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:25:53,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:25:53,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:25:53,206 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:25:53,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:25:53,263 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-04-16 07:25:53,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 07:25:53,394 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 10 [2021-04-16 07:25:53,398 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:25:53,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:25:53,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:25:53,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:25:53,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:25:53,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:25:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:25:53,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:25:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:25:53,643 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-04-16 07:25:53,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:25:53,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:25:53,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 07:25:53,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:25:53,760 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-04-16 07:25:53,763 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:53,865 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:53,868 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:54,218 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:54,221 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:54,336 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:54,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:54,457 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:54,459 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:54,580 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:54,583 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:54,718 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:54,721 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:54,862 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:54,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:54,999 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:55,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:55,151 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:55,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:55,304 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:55,307 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:55,460 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:55,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:55,621 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:55,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:55,793 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:55,796 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:55,955 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:55,958 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:56,141 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:56,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:56,347 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:56,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:56,548 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:56,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:56,749 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:56,752 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:56,951 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:56,954 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:57,156 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:57,159 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:57,371 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:57,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:57,582 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:57,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:57,810 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:57,813 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:58,039 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:58,042 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:58,264 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:58,267 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:58,503 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:58,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:58,765 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:58,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:59,017 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:59,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:25:59,259 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:59,262 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:59,505 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:59,508 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:25:59,752 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:25:59,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:00,008 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:00,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:00,289 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:00,292 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:00,590 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:00,593 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:00,879 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:00,882 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:01,162 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:01,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:01,452 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:01,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:01,763 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:01,765 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:02,086 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:02,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:02,401 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:02,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:02,719 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:02,722 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:03,045 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:03,048 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:03,377 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:03,380 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:03,735 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:03,737 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:04,118 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:04,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:04,467 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:04,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:04,827 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:04,829 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:05,176 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:05,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:05,550 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:05,553 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:05,920 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:05,923 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-04-16 07:26:06,282 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:06,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:06,698 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-04-16 07:26:06,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-16 07:26:07,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:07,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:07,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232974792] [2021-04-16 07:26:07,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:26:07,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2021-04-16 07:26:07,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820028862] [2021-04-16 07:26:07,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-04-16 07:26:07,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:26:07,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-04-16 07:26:07,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=3724, Unknown=1, NotChecked=0, Total=3906 [2021-04-16 07:26:07,194 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand has 61 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 59 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:26:08,800 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-16 07:26:09,368 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-04-16 07:26:14,646 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:17,212 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:18,361 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:18,949 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:19,533 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:22,296 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:25,088 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:26,779 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:27,339 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:28,469 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:29,044 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:29,638 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:31,257 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:31,876 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:32,570 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:33,263 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:34,007 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:34,722 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:35,431 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:36,142 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:36,856 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:37,618 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:38,375 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:39,132 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:39,869 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:40,582 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:41,309 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:42,031 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:42,765 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:43,494 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:44,239 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:44,982 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:45,727 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-04-16 07:26:46,488 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-04-16 07:26:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:26:47,822 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-04-16 07:26:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-04-16 07:26:47,830 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 59 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2021-04-16 07:26:47,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:26:47,830 INFO L225 Difference]: With dead ends: 72 [2021-04-16 07:26:47,831 INFO L226 Difference]: Without dead ends: 67 [2021-04-16 07:26:47,831 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2043 ImplicationChecksByTransitivity, 33950.3ms TimeCoverageRelationStatistics Valid=476, Invalid=14042, Unknown=2, NotChecked=0, Total=14520 [2021-04-16 07:26:47,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-04-16 07:26:47,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-04-16 07:26:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.0161290322580645) internal successors, (63), 62 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:26:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2021-04-16 07:26:47,889 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 65 [2021-04-16 07:26:47,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:26:47,889 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2021-04-16 07:26:47,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 61 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 59 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:26:47,890 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2021-04-16 07:26:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-04-16 07:26:47,890 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:26:47,890 INFO L519 BasicCegarLoop]: trace histogram [54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:26:47,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-04-16 07:26:47,890 INFO L428 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:26:47,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:26:47,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1127808311, now seen corresponding path program 54 times [2021-04-16 07:26:47,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:26:47,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32017254] [2021-04-16 07:26:47,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:26:47,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:47,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:26:47,914 INFO L175 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1706) InVars {main_~mid~0=v_main_~mid~0_1706} OutVars{main_~mid~0=v_main_~mid~0_1706} AuxVars[] AssignedVars[] [2021-04-16 07:26:47,918 WARN L240 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size [2021-04-16 07:26:47,920 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:47,936 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:26:47,946 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:47,949 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:26:47,959 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 07:26:47,973 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:47,987 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:47,998 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,010 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,023 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,034 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,045 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,056 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,070 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,081 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,083 WARN L245 tifierPushTermWalker]: treesize reduction 16, result has 77.8 percent of original size 56 [2021-04-16 07:26:48,220 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-04-16 07:26:48,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:26:48,227 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 07:26:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:26:48,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:48,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:26:48,271 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-04-16 07:26:48,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:26:48,337 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-16 07:26:48,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-16 07:26:48,411 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-16 07:26:48,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:26:48,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:26:48,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:26:48,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:48,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:26:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:26:48,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:26:48,675 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-04-16 07:26:48,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:48,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-04-16 07:26:48,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 07:26:48,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:48,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:48,807 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:48,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:48,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:48,963 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:48,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:48,966 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:48,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:48,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:49,147 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:49,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:49,151 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:49,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:49,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:49,336 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:49,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:49,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:49,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:49,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:49,542 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:49,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:49,545 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:49,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:49,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:49,774 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:49,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:49,778 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:49,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:49,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:50,025 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:50,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:50,028 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:50,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:50,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:50,307 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:50,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:50,310 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:50,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:50,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:50,620 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:50,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:50,624 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:50,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:50,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:50,959 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:50,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:50,963 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:50,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:50,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:51,367 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:51,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:51,370 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:51,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:51,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:51,720 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:51,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:51,723 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:51,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:51,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:52,137 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:52,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:52,141 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:52,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:52,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:52,535 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:52,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:52,539 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:52,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:52,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:52,961 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:52,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:52,965 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:52,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:52,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:53,363 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:53,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:53,367 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:53,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:53,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:53,848 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:53,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:53,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:53,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:53,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:54,311 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:54,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:54,315 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:54,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:54,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:54,762 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:54,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:54,765 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:54,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:54,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:55,234 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:55,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:55,238 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:55,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:55,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:55,765 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:55,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:55,769 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:55,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:55,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:56,297 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:56,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:56,301 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:56,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:56,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:56,862 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:56,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:56,866 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:56,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:56,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:57,428 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:57,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:57,431 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:57,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:57,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:58,034 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:58,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:58,037 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:58,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:58,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:58,655 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:58,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:58,658 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:58,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:58,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:59,313 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:59,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:59,317 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:59,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:59,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:26:59,930 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:26:59,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:26:59,933 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:26:59,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:26:59,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:00,626 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:00,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:00,630 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:00,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:00,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:01,286 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:01,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:01,290 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:01,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:01,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:01,999 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:02,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:02,003 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:02,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:02,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:02,688 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:02,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:02,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:02,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:02,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:03,473 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:03,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:03,477 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:03,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:03,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:04,270 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:04,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:04,274 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:04,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:04,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:05,093 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:05,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:05,096 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:05,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:05,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:05,938 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:05,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:05,941 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:05,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:05,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:06,770 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:06,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:06,774 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:06,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:06,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:07,586 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:07,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:07,590 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:07,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:07,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:08,441 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:08,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:08,445 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:08,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:08,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:09,328 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:09,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:09,332 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:09,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:09,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:10,196 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:10,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:10,199 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:10,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:10,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:11,054 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:11,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:11,058 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:11,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:11,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:11,922 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:11,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:11,926 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:11,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:11,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:12,728 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:12,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:12,731 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:12,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:12,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:13,552 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:13,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:13,555 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:13,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:13,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:14,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:14,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:14,400 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:14,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:14,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:15,388 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:15,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:15,391 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:15,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:15,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:16,321 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:16,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:16,324 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:16,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:16,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:17,333 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:17,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:17,336 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:17,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:17,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:18,354 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:18,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:18,358 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:18,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:18,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:19,340 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:19,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:19,344 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:19,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:19,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:20,393 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:20,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:20,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:20,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:20,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:21,414 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:21,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:21,418 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:21,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:21,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:22,459 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-04-16 07:27:22,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 07:27:22,463 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-04-16 07:27:22,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-16 07:27:22,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:27:23,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:27:23,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:27:23,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32017254] [2021-04-16 07:27:23,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:27:23,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-04-16 07:27:23,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790915158] [2021-04-16 07:27:23,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-04-16 07:27:23,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:27:23,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-04-16 07:27:23,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=3848, Unknown=0, NotChecked=0, Total=4032 [2021-04-16 07:27:23,524 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand has 62 states, 61 states have (on average 1.0163934426229508) internal successors, (62), 60 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 07:27:25,327 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-16 07:27:26,288 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-16 07:27:27,458 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-16 07:27:28,597 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:29,891 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:31,024 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:32,309 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:33,226 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:34,365 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:35,429 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:36,596 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:37,725 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:38,941 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:40,100 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:41,143 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:42,272 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:43,513 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:44,736 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:45,990 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:47,215 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:48,499 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:49,414 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:50,406 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:51,644 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:52,590 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:53,640 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:54,777 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:55,950 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:57,278 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:58,412 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:27:59,596 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:28:00,835 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:28:01,806 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:28:03,057 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:28:04,187 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-16 07:28:05,560 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 61