/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/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 07:21:52,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 07:21:52,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 07:21:52,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 07:21:52,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 07:21:52,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 07:21:52,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 07:21:52,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-01 07:21:52,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 07:21:52,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 07:21:52,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 07:21:52,362 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 07:21:52,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 07:21:52,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 07:21:52,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 07:21:52,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 07:21:52,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 07:21:52,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 07:21:52,364 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 07:21:52,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 07:21:52,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 07:21:52,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 07:21:52,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 07:21:52,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 07:21:52,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 07:21:52,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 07:21:52,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 07:21:52,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 07:21:52,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 07:21:52,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 07:21:52,366 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 07:21:52,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 07:21:52,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 07:21:52,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 07:21:52,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 07:21:52,728 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 07:21:52,729 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 07:21:52,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2021-05-01 07:21:52,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49fef53c2/afee10a77fdb461681e974fc164d6470/FLAGbdaa14724 [2021-05-01 07:21:53,254 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 07:21:53,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2021-05-01 07:21:53,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49fef53c2/afee10a77fdb461681e974fc164d6470/FLAGbdaa14724 [2021-05-01 07:21:53,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49fef53c2/afee10a77fdb461681e974fc164d6470 [2021-05-01 07:21:53,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 07:21:53,644 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 07:21:53,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 07:21:53,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 07:21:53,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 07:21:53,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab0e5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53, skipping insertion in model container [2021-05-01 07:21:53,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 07:21:53,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 07:21:53,861 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2021-05-01 07:21:53,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:21:53,891 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 07:21:53,923 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2021-05-01 07:21:53,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:21:53,960 INFO L208 MainTranslator]: Completed translation [2021-05-01 07:21:53,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53 WrapperNode [2021-05-01 07:21:53,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 07:21:53,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 07:21:53,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 07:21:53,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 07:21:53,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (1/1) ... [2021-05-01 07:21:53,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 07:21:54,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 07:21:54,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 07:21:54,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 07:21:54,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (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 [2021-05-01 07:21:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 07:21:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 07:21:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 07:21:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 07:21:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 07:21:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 07:21:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 07:21:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 07:21:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 07:21:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 07:21:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 07:21:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 07:21:54,306 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 07:21:54,307 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 07:21:54,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:21:54 BoogieIcfgContainer [2021-05-01 07:21:54,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 07:21:54,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 07:21:54,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 07:21:54,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 07:21:54,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 07:21:53" (1/3) ... [2021-05-01 07:21:54,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fecad0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:21:54, skipping insertion in model container [2021-05-01 07:21:54,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:21:53" (2/3) ... [2021-05-01 07:21:54,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fecad0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:21:54, skipping insertion in model container [2021-05-01 07:21:54,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:21:54" (3/3) ... [2021-05-01 07:21:54,316 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2021-05-01 07:21:54,322 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 07:21:54,326 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 07:21:54,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 07:21:54,370 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 07:21:54,370 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 07:21:54,370 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 07:21:54,370 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 07:21:54,370 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 07:21:54,370 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 07:21:54,370 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 07:21:54,371 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 07:21:54,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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) [2021-05-01 07:21:54,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-01 07:21:54,397 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:21:54,398 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:21:54,399 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:21:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:21:54,406 INFO L82 PathProgramCache]: Analyzing trace with hash -522767122, now seen corresponding path program 1 times [2021-05-01 07:21:54,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:21:54,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595748898] [2021-05-01 07:21:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:21:54,480 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:21:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:54,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:54,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:54,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:54,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:54,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:21:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:54,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:54,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:21:54,733 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:21:54,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595748898] [2021-05-01 07:21:54,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [595748898] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:21:54,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:21:54,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 07:21:54,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657258572] [2021-05-01 07:21:54,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 07:21:54,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:21:54,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 07:21:54,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 07:21:54,754 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 16 states have internal predecessors, (21), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2021-05-01 07:21:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:21:54,854 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2021-05-01 07:21:54,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 07:21:54,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 [2021-05-01 07:21:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:21:54,866 INFO L225 Difference]: With dead ends: 35 [2021-05-01 07:21:54,866 INFO L226 Difference]: Without dead ends: 15 [2021-05-01 07:21:54,875 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 07:21:54,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-01 07:21:54,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-01 07:21:54,910 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) [2021-05-01 07:21:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-05-01 07:21:54,912 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 14 [2021-05-01 07:21:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:21:54,913 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-05-01 07:21:54,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2021-05-01 07:21:54,913 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-05-01 07:21:54,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-01 07:21:54,914 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:21:54,914 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:21:54,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 07:21:54,915 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:21:54,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:21:54,916 INFO L82 PathProgramCache]: Analyzing trace with hash -637283726, now seen corresponding path program 1 times [2021-05-01 07:21:54,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:21:54,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855968283] [2021-05-01 07:21:54,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:21:54,923 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:21:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:54,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:54,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:54,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:54,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:54,987 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.0 percent of original size [2021-05-01 07:21:54,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:21:55,045 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size [2021-05-01 07:21:55,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 07:21:55,076 INFO L142 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size [2021-05-01 07:21:55,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:21:55,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:55,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:55,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:55,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:21:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:55,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:21:55,169 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:21:55,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855968283] [2021-05-01 07:21:55,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [855968283] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:21:55,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:21:55,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-01 07:21:55,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257679862] [2021-05-01 07:21:55,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 07:21:55,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:21:55,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 07:21:55,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-01 07:21:55,172 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-05-01 07:21:55,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:21:55,393 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-05-01 07:21:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 07:21:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 [2021-05-01 07:21:55,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:21:55,394 INFO L225 Difference]: With dead ends: 22 [2021-05-01 07:21:55,394 INFO L226 Difference]: Without dead ends: 16 [2021-05-01 07:21:55,395 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 274.1ms TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-05-01 07:21:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-05-01 07:21:55,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-05-01 07:21:55,399 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) [2021-05-01 07:21:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-05-01 07:21:55,400 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-05-01 07:21:55,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:21:55,400 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-05-01 07:21:55,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2021-05-01 07:21:55,400 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-05-01 07:21:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-01 07:21:55,401 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:21:55,401 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:21:55,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 07:21:55,401 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:21:55,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:21:55,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1050868340, now seen corresponding path program 1 times [2021-05-01 07:21:55,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:21:55,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417694405] [2021-05-01 07:21:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:21:55,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:55,441 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_6 0)) InVars {main_~x~0=v_main_~x~0_6} OutVars{main_~x~0=v_main_~x~0_6} AuxVars[] AssignedVars[] [2021-05-01 07:21:55,454 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:21:55,460 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,464 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:21:55,465 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:21:55,466 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:21:55,469 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:21:55,473 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,475 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,477 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,479 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,482 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,484 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,486 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,488 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,490 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,492 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,494 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,495 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:21:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:21:55,527 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:21:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:55,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:55,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:55,602 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:21:55,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:55,604 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-05-01 07:21:55,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:21:55,641 INFO L142 QuantifierPusher]: treesize reduction 22, result has 74.4 percent of original size [2021-05-01 07:21:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:21:55,725 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-05-01 07:21:55,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:21:55,802 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-05-01 07:21:55,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:21:55,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:55,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:55,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:55,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:21:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:55,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:21:55,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:55,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:21:55,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:21:55,918 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:21:55,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:55,936 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:21:55,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:21:55,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:21:55,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:55,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:55,962 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:21:55,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417694405] [2021-05-01 07:21:55,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1417694405] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:21:55,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:21:55,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 07:21:55,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490315114] [2021-05-01 07:21:55,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 07:21:55,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:21:55,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 07:21:55,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-05-01 07:21:55,974 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2021-05-01 07:21:56,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:21:56,349 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-05-01 07:21:56,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-01 07:21:56,353 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 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 [2021-05-01 07:21:56,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:21:56,354 INFO L225 Difference]: With dead ends: 23 [2021-05-01 07:21:56,354 INFO L226 Difference]: Without dead ends: 17 [2021-05-01 07:21:56,355 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 490.0ms TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-05-01 07:21:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-01 07:21:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-01 07:21:56,358 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) [2021-05-01 07:21:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-05-01 07:21:56,359 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2021-05-01 07:21:56,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:21:56,359 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-05-01 07:21:56,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2021-05-01 07:21:56,360 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-05-01 07:21:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-01 07:21:56,360 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:21:56,360 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:21:56,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 07:21:56,360 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:21:56,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:21:56,361 INFO L82 PathProgramCache]: Analyzing trace with hash -987089486, now seen corresponding path program 2 times [2021-05-01 07:21:56,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:21:56,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736345099] [2021-05-01 07:21:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:21:56,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:56,387 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_10 0)) InVars {main_~x~0=v_main_~x~0_10} OutVars{main_~x~0=v_main_~x~0_10} AuxVars[] AssignedVars[] [2021-05-01 07:21:56,401 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:21:56,409 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,415 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,418 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,421 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,424 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,427 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,429 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,431 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,435 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:21:56,436 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:21:56,437 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:21:56,440 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:21:56,444 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,448 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,450 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,454 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,456 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:21:56,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:21:56,474 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:21:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:56,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:56,522 INFO L142 QuantifierPusher]: treesize reduction 5, result has 81.5 percent of original size [2021-05-01 07:21:56,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 07:21:56,536 INFO L142 QuantifierPusher]: treesize reduction 14, result has 83.3 percent of original size [2021-05-01 07:21:56,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:21:56,563 INFO L142 QuantifierPusher]: treesize reduction 40, result has 44.4 percent of original size [2021-05-01 07:21:56,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 07:21:56,581 INFO L142 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-05-01 07:21:56,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:21:56,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:56,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:56,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:21:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:56,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:21:56,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:56,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:21:56,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:21:56,708 INFO L142 QuantifierPusher]: treesize reduction 23, result has 76.3 percent of original size [2021-05-01 07:21:56,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:56,718 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:21:56,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:21:56,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:21:56,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:56,770 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:21:56,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:21:56,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:21:56,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:56,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:56,807 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:21:56,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736345099] [2021-05-01 07:21:56,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1736345099] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:21:56,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:21:56,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-01 07:21:56,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341066627] [2021-05-01 07:21:56,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-01 07:21:56,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:21:56,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-01 07:21:56,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-05-01 07:21:56,809 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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) [2021-05-01 07:21:57,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:21:57,241 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-05-01 07:21:57,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-01 07:21:57,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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 [2021-05-01 07:21:57,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:21:57,242 INFO L225 Difference]: With dead ends: 24 [2021-05-01 07:21:57,242 INFO L226 Difference]: Without dead ends: 18 [2021-05-01 07:21:57,243 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 478.0ms TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2021-05-01 07:21:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-05-01 07:21:57,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-05-01 07:21:57,247 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) [2021-05-01 07:21:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-05-01 07:21:57,248 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2021-05-01 07:21:57,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:21:57,248 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-05-01 07:21:57,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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) [2021-05-01 07:21:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-05-01 07:21:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 07:21:57,249 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:21:57,249 INFO L519 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:21:57,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-01 07:21:57,249 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:21:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:21:57,250 INFO L82 PathProgramCache]: Analyzing trace with hash 990054988, now seen corresponding path program 3 times [2021-05-01 07:21:57,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:21:57,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142181950] [2021-05-01 07:21:57,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:21:57,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:57,269 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_15 0)) InVars {main_~x~0=v_main_~x~0_15} OutVars{main_~x~0=v_main_~x~0_15} AuxVars[] AssignedVars[] [2021-05-01 07:21:57,275 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:21:57,277 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,281 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:21:57,282 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:21:57,283 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:21:57,287 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,291 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,294 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,297 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,300 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:21:57,303 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,305 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,307 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,310 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,313 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,316 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,318 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,319 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:21:57,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:21:57,339 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:21:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:57,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:57,390 INFO L142 QuantifierPusher]: treesize reduction 8, result has 73.3 percent of original size [2021-05-01 07:21:57,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 07:21:57,407 INFO L142 QuantifierPusher]: treesize reduction 67, result has 54.4 percent of original size [2021-05-01 07:21:57,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:21:57,461 INFO L142 QuantifierPusher]: treesize reduction 48, result has 55.1 percent of original size [2021-05-01 07:21:57,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:21:57,486 INFO L142 QuantifierPusher]: treesize reduction 51, result has 41.4 percent of original size [2021-05-01 07:21:57,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:21:57,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:57,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:57,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:21:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:57,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:21:57,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:57,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:21:57,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:21:57,605 INFO L142 QuantifierPusher]: treesize reduction 23, result has 76.3 percent of original size [2021-05-01 07:21:57,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:57,612 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:21:57,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:21:57,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:21:57,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:57,648 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:21:57,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:21:57,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:21:57,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:57,684 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:21:57,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:21:57,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:21:57,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:57,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:57,724 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:21:57,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142181950] [2021-05-01 07:21:57,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1142181950] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:21:57,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:21:57,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-01 07:21:57,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074477812] [2021-05-01 07:21:57,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-01 07:21:57,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:21:57,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-01 07:21:57,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-05-01 07:21:57,725 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 9 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) [2021-05-01 07:21:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:21:58,216 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2021-05-01 07:21:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-01 07:21:58,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 9 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 [2021-05-01 07:21:58,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:21:58,219 INFO L225 Difference]: With dead ends: 25 [2021-05-01 07:21:58,219 INFO L226 Difference]: Without dead ends: 19 [2021-05-01 07:21:58,219 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 598.7ms TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-05-01 07:21:58,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-05-01 07:21:58,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-05-01 07:21:58,224 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) [2021-05-01 07:21:58,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-05-01 07:21:58,224 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2021-05-01 07:21:58,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:21:58,224 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-05-01 07:21:58,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 9 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) [2021-05-01 07:21:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-05-01 07:21:58,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-01 07:21:58,225 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:21:58,225 INFO L519 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:21:58,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-01 07:21:58,225 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:21:58,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:21:58,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2142975758, now seen corresponding path program 4 times [2021-05-01 07:21:58,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:21:58,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324251441] [2021-05-01 07:21:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:21:58,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:58,235 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_21 0)) InVars {main_~x~0=v_main_~x~0_21} OutVars{main_~x~0=v_main_~x~0_21} AuxVars[] AssignedVars[] [2021-05-01 07:21:58,239 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:21:58,243 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,246 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,248 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,250 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,253 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,256 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,258 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,259 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,271 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:21:58,273 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:21:58,273 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:21:58,277 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,281 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,284 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,287 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,290 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:21:58,291 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:21:58,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:21:58,307 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:21:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:58,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:58,376 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-05-01 07:21:58,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:21:58,385 INFO L142 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size [2021-05-01 07:21:58,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:21:58,400 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size [2021-05-01 07:21:58,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 07:21:58,413 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:21:58,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:21:58,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:58,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:58,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:21:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:58,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:58,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:21:58,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:58,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:21:58,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:21:58,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:58,507 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-05-01 07:21:58,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:58,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:21:58,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:58,544 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:21:58,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:58,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:21:58,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:58,593 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:21:58,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:58,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:21:58,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:58,658 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:21:58,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:58,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:21:58,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:58,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:58,705 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:21:58,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324251441] [2021-05-01 07:21:58,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1324251441] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:21:58,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:21:58,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-01 07:21:58,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845023552] [2021-05-01 07:21:58,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-01 07:21:58,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:21:58,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-01 07:21:58,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-05-01 07:21:58,709 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 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) [2021-05-01 07:21:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:21:59,284 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-05-01 07:21:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-01 07:21:59,285 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 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 [2021-05-01 07:21:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:21:59,285 INFO L225 Difference]: With dead ends: 26 [2021-05-01 07:21:59,285 INFO L226 Difference]: Without dead ends: 20 [2021-05-01 07:21:59,286 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 613.6ms TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2021-05-01 07:21:59,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-05-01 07:21:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-05-01 07:21:59,291 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) [2021-05-01 07:21:59,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-05-01 07:21:59,291 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2021-05-01 07:21:59,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:21:59,292 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-05-01 07:21:59,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 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) [2021-05-01 07:21:59,292 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-05-01 07:21:59,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-05-01 07:21:59,292 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:21:59,292 INFO L519 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:21:59,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-01 07:21:59,293 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:21:59,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:21:59,293 INFO L82 PathProgramCache]: Analyzing trace with hash -482681076, now seen corresponding path program 5 times [2021-05-01 07:21:59,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:21:59,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258822282] [2021-05-01 07:21:59,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:21:59,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:59,302 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_28 0)) InVars {main_~x~0=v_main_~x~0_28} OutVars{main_~x~0=v_main_~x~0_28} AuxVars[] AssignedVars[] [2021-05-01 07:21:59,305 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:21:59,308 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,311 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:21:59,313 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:21:59,313 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:21:59,316 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,319 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,322 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,324 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,327 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:21:59,331 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,333 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,335 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,338 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,340 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,343 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,345 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,346 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:21:59,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:21:59,364 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:21:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:59,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:59,394 INFO L142 QuantifierPusher]: treesize reduction 18, result has 55.0 percent of original size [2021-05-01 07:21:59,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 07:21:59,406 INFO L142 QuantifierPusher]: treesize reduction 47, result has 58.0 percent of original size [2021-05-01 07:21:59,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:21:59,429 INFO L142 QuantifierPusher]: treesize reduction 40, result has 44.4 percent of original size [2021-05-01 07:21:59,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 07:21:59,446 INFO L142 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-05-01 07:21:59,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:21:59,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:59,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:59,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:59,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:21:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:59,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:59,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:21:59,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:59,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:21:59,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:21:59,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:59,537 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-05-01 07:21:59,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:59,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:21:59,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:59,585 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:21:59,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:59,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:21:59,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:59,629 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:21:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:59,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:21:59,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:59,675 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:21:59,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:59,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:21:59,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:59,728 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:21:59,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:21:59,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:21:59,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:59,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:59,782 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:21:59,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258822282] [2021-05-01 07:21:59,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1258822282] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:21:59,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:21:59,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-01 07:21:59,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648482597] [2021-05-01 07:21:59,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-01 07:21:59,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:21:59,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-01 07:21:59,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-05-01 07:21:59,784 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 11 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) [2021-05-01 07:22:00,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:00,484 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2021-05-01 07:22:00,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-01 07:22:00,485 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.25) internal successors, (15), 11 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 [2021-05-01 07:22:00,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:00,486 INFO L225 Difference]: With dead ends: 27 [2021-05-01 07:22:00,486 INFO L226 Difference]: Without dead ends: 21 [2021-05-01 07:22:00,486 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 795.0ms TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2021-05-01 07:22:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-05-01 07:22:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-05-01 07:22:00,491 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) [2021-05-01 07:22:00,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-05-01 07:22:00,492 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2021-05-01 07:22:00,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:00,492 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-05-01 07:22:00,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 1.25) internal successors, (15), 11 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) [2021-05-01 07:22:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-05-01 07:22:00,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-01 07:22:00,493 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:00,493 INFO L519 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:00,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-01 07:22:00,493 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:00,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:00,494 INFO L82 PathProgramCache]: Analyzing trace with hash -553153486, now seen corresponding path program 6 times [2021-05-01 07:22:00,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:00,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545156038] [2021-05-01 07:22:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:00,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:00,504 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_36 0)) InVars {main_~x~0=v_main_~x~0_36} OutVars{main_~x~0=v_main_~x~0_36} AuxVars[] AssignedVars[] [2021-05-01 07:22:00,506 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:00,508 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,511 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:00,512 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:00,513 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:00,516 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:00,520 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,523 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,531 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,533 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,536 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,538 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,544 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,550 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,553 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,556 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,557 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,558 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:00,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:22:00,576 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:00,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:00,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:00,632 INFO L142 QuantifierPusher]: treesize reduction 14, result has 33.3 percent of original size [2021-05-01 07:22:00,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:22:00,643 INFO L142 QuantifierPusher]: treesize reduction 33, result has 50.7 percent of original size [2021-05-01 07:22:00,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-01 07:22:00,674 INFO L142 QuantifierPusher]: treesize reduction 40, result has 70.1 percent of original size [2021-05-01 07:22:00,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 07:22:00,730 INFO L142 QuantifierPusher]: treesize reduction 27, result has 74.0 percent of original size [2021-05-01 07:22:00,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:00,763 INFO L142 QuantifierPusher]: treesize reduction 53, result has 40.4 percent of original size [2021-05-01 07:22:00,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:22:00,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:00,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:00,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:00,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:00,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:00,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:00,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:22:00,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-05-01 07:22:00,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:00,873 INFO L142 QuantifierPusher]: treesize reduction 4, result has 95.2 percent of original size [2021-05-01 07:22:00,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:22:00,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:00,914 INFO L142 QuantifierPusher]: treesize reduction 31, result has 72.1 percent of original size [2021-05-01 07:22:00,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:00,918 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:00,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:00,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:22:00,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:00,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:00,956 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:00,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:00,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:00,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:01,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:01,001 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:01,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:01,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-05-01 07:22:01,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:01,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:01,053 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:01,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:01,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 07:22:01,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:01,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:01,126 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:01,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:01,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 07:22:01,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:01,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:01,180 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:01,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545156038] [2021-05-01 07:22:01,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1545156038] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:01,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:01,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-01 07:22:01,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406459608] [2021-05-01 07:22:01,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-01 07:22:01,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:01,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-01 07:22:01,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-05-01 07:22:01,181 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 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) [2021-05-01 07:22:01,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:01,975 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-05-01 07:22:01,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-01 07:22:01,976 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 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 [2021-05-01 07:22:01,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:01,976 INFO L225 Difference]: With dead ends: 28 [2021-05-01 07:22:01,977 INFO L226 Difference]: Without dead ends: 22 [2021-05-01 07:22:01,977 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1020.7ms TimeCoverageRelationStatistics Valid=137, Invalid=675, Unknown=0, NotChecked=0, Total=812 [2021-05-01 07:22:01,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-05-01 07:22:01,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-05-01 07:22:01,983 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) [2021-05-01 07:22:01,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-05-01 07:22:01,983 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2021-05-01 07:22:01,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:01,984 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-05-01 07:22:01,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 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) [2021-05-01 07:22:01,984 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-05-01 07:22:01,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-05-01 07:22:01,984 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:01,984 INFO L519 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:01,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-01 07:22:01,985 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:01,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:01,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1557169100, now seen corresponding path program 7 times [2021-05-01 07:22:01,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:01,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504097831] [2021-05-01 07:22:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:01,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:01,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:01,992 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_45 0)) InVars {main_~x~0=v_main_~x~0_45} OutVars{main_~x~0=v_main_~x~0_45} AuxVars[] AssignedVars[] [2021-05-01 07:22:01,995 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:01,997 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,000 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:02,001 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:02,002 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:02,023 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:02,031 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,034 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,037 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,040 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,043 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,046 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,048 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,050 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,052 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,054 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,057 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,057 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:02,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:02,076 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:02,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:02,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:02,106 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:22:02,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:02,108 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-05-01 07:22:02,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:22:02,127 INFO L142 QuantifierPusher]: treesize reduction 22, result has 74.4 percent of original size [2021-05-01 07:22:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:22:02,179 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-05-01 07:22:02,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:02,244 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-05-01 07:22:02,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:22:02,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:02,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:02,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:02,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:02,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:02,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:02,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:02,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:02,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:02,335 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:22:02,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:02,338 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:02,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:02,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:22:02,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:02,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:02,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:02,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:02,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:02,391 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:02,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:02,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:02,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:02,427 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:02,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:02,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:02,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:02,477 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:02,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:02,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:02,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:02,523 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:02,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:02,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:02,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:02,566 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:02,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:02,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:02,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:02,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:02,616 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:02,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504097831] [2021-05-01 07:22:02,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1504097831] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:02,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:02,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-01 07:22:02,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615462467] [2021-05-01 07:22:02,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-01 07:22:02,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:02,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-01 07:22:02,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-05-01 07:22:02,618 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 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) [2021-05-01 07:22:03,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:03,431 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2021-05-01 07:22:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-01 07:22:03,431 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 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 [2021-05-01 07:22:03,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:03,434 INFO L225 Difference]: With dead ends: 29 [2021-05-01 07:22:03,434 INFO L226 Difference]: Without dead ends: 23 [2021-05-01 07:22:03,434 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 970.7ms TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2021-05-01 07:22:03,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-01 07:22:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-05-01 07:22:03,440 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) [2021-05-01 07:22:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-05-01 07:22:03,441 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2021-05-01 07:22:03,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:03,441 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2021-05-01 07:22:03,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 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) [2021-05-01 07:22:03,441 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-05-01 07:22:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-01 07:22:03,442 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:03,442 INFO L519 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:03,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-01 07:22:03,442 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:03,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1742307470, now seen corresponding path program 8 times [2021-05-01 07:22:03,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:03,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141544756] [2021-05-01 07:22:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:03,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:03,464 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_55 0)) InVars {main_~x~0=v_main_~x~0_55} OutVars{main_~x~0=v_main_~x~0_55} AuxVars[] AssignedVars[] [2021-05-01 07:22:03,467 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:03,471 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,474 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,476 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,478 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,481 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,483 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,485 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,486 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,489 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:03,491 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:03,491 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:03,494 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:03,497 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,500 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,502 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,504 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,505 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:03,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:03,521 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:03,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:03,583 INFO L142 QuantifierPusher]: treesize reduction 7, result has 69.6 percent of original size [2021-05-01 07:22:03,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 07:22:03,601 INFO L142 QuantifierPusher]: treesize reduction 44, result has 65.6 percent of original size [2021-05-01 07:22:03,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 07:22:03,628 INFO L142 QuantifierPusher]: treesize reduction 21, result has 78.6 percent of original size [2021-05-01 07:22:03,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:03,662 INFO L142 QuantifierPusher]: treesize reduction 51, result has 41.4 percent of original size [2021-05-01 07:22:03,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:22:03,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:03,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:03,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:03,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:03,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:03,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:03,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:03,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:22:03,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:22:03,744 INFO L142 QuantifierPusher]: treesize reduction 23, result has 74.7 percent of original size [2021-05-01 07:22:03,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:03,747 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:03,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:03,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:22:03,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:03,770 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:03,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:03,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:22:03,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:03,797 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:03,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:03,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:22:03,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:03,833 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:03,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:03,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:22:03,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:03,876 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:03,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:03,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:22:03,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:03,918 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:03,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:03,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:22:03,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:03,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:03,975 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:03,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:03,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:22:04,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:04,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:04,033 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:04,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:04,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:22:04,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:04,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:04,094 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:04,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141544756] [2021-05-01 07:22:04,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2141544756] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:04,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:04,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-01 07:22:04,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3913292] [2021-05-01 07:22:04,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-01 07:22:04,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:04,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-01 07:22:04,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-05-01 07:22:04,095 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 14 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) [2021-05-01 07:22:05,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:05,067 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-05-01 07:22:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-01 07:22:05,068 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.2) internal successors, (18), 14 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 [2021-05-01 07:22:05,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:05,069 INFO L225 Difference]: With dead ends: 30 [2021-05-01 07:22:05,069 INFO L226 Difference]: Without dead ends: 24 [2021-05-01 07:22:05,070 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1130.3ms TimeCoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2021-05-01 07:22:05,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-01 07:22:05,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-05-01 07:22:05,076 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) [2021-05-01 07:22:05,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-05-01 07:22:05,077 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2021-05-01 07:22:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:05,077 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-05-01 07:22:05,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 1.2) internal successors, (18), 14 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) [2021-05-01 07:22:05,077 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-05-01 07:22:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-01 07:22:05,078 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:05,078 INFO L519 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:05,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-01 07:22:05,078 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:05,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:05,079 INFO L82 PathProgramCache]: Analyzing trace with hash -946866036, now seen corresponding path program 9 times [2021-05-01 07:22:05,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:05,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173011800] [2021-05-01 07:22:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:05,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:05,088 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_66 0)) InVars {main_~x~0=v_main_~x~0_66} OutVars{main_~x~0=v_main_~x~0_66} AuxVars[] AssignedVars[] [2021-05-01 07:22:05,090 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:05,091 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,095 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:05,096 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:05,097 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:05,100 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,102 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,105 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,107 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,110 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:05,113 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,115 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,117 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,119 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,122 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,124 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,126 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,127 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:05,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:05,144 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:05,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:05,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:05,172 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:22:05,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:05,174 INFO L142 QuantifierPusher]: treesize reduction 57, result has 36.7 percent of original size [2021-05-01 07:22:05,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-01 07:22:05,189 INFO L142 QuantifierPusher]: treesize reduction 77, result has 48.7 percent of original size [2021-05-01 07:22:05,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:22:05,221 INFO L142 QuantifierPusher]: treesize reduction 56, result has 49.5 percent of original size [2021-05-01 07:22:05,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:05,243 INFO L142 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-05-01 07:22:05,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:22:05,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:05,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:05,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:05,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:05,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:05,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:05,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:05,313 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:22:05,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,315 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:22:05,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,341 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:05,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,367 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:05,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,416 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:05,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,459 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:05,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,501 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:05,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,557 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:05,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,612 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:22:05,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:05,670 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:05,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:05,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:22:05,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:05,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:05,731 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:05,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173011800] [2021-05-01 07:22:05,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [173011800] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:05,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:05,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-01 07:22:05,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485680030] [2021-05-01 07:22:05,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-01 07:22:05,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:05,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-01 07:22:05,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-05-01 07:22:05,733 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 15 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) [2021-05-01 07:22:06,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:06,774 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-05-01 07:22:06,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-01 07:22:06,775 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.1875) internal successors, (19), 15 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 [2021-05-01 07:22:06,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:06,775 INFO L225 Difference]: With dead ends: 31 [2021-05-01 07:22:06,775 INFO L226 Difference]: Without dead ends: 25 [2021-05-01 07:22:06,776 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1214.9ms TimeCoverageRelationStatistics Valid=112, Invalid=944, Unknown=0, NotChecked=0, Total=1056 [2021-05-01 07:22:06,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-05-01 07:22:06,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-05-01 07:22:06,784 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) [2021-05-01 07:22:06,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-05-01 07:22:06,785 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2021-05-01 07:22:06,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:06,785 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-05-01 07:22:06,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 1.1875) internal successors, (19), 15 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) [2021-05-01 07:22:06,785 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-05-01 07:22:06,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-01 07:22:06,786 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:06,786 INFO L519 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:06,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-01 07:22:06,786 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:06,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:06,787 INFO L82 PathProgramCache]: Analyzing trace with hash -2057985358, now seen corresponding path program 10 times [2021-05-01 07:22:06,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:06,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122662414] [2021-05-01 07:22:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:06,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:06,797 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_78 0)) InVars {main_~x~0=v_main_~x~0_78} OutVars{main_~x~0=v_main_~x~0_78} AuxVars[] AssignedVars[] [2021-05-01 07:22:06,800 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:06,803 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,806 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,809 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,812 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,814 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,817 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,820 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,821 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,824 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:06,825 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:06,826 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:06,829 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,832 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,834 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,837 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,840 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:06,841 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:06,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:06,860 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:06,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:06,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:06,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:06,899 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:22:06,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:06,901 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-05-01 07:22:06,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:22:06,920 INFO L142 QuantifierPusher]: treesize reduction 22, result has 74.4 percent of original size [2021-05-01 07:22:06,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:22:06,973 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-05-01 07:22:06,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:07,034 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-05-01 07:22:07,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:22:07,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:07,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:07,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:07,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:07,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:07,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:07,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:07,118 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:22:07,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,120 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:22:07,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,143 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:07,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,174 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:07,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,205 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:07,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,243 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:07,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,282 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:07,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,331 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:07,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,382 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:22:07,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,437 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:22:07,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:07,503 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:07,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:07,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:22:07,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:07,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:07,567 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:07,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122662414] [2021-05-01 07:22:07,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2122662414] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:07,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:07,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-01 07:22:07,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186873889] [2021-05-01 07:22:07,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-01 07:22:07,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:07,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-01 07:22:07,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-05-01 07:22:07,579 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 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) [2021-05-01 07:22:08,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:08,730 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2021-05-01 07:22:08,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-01 07:22:08,731 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 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 [2021-05-01 07:22:08,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:08,732 INFO L225 Difference]: With dead ends: 32 [2021-05-01 07:22:08,732 INFO L226 Difference]: Without dead ends: 26 [2021-05-01 07:22:08,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1375.2ms TimeCoverageRelationStatistics Valid=116, Invalid=1074, Unknown=0, NotChecked=0, Total=1190 [2021-05-01 07:22:08,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-05-01 07:22:08,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-05-01 07:22:08,740 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) [2021-05-01 07:22:08,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-05-01 07:22:08,741 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2021-05-01 07:22:08,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:08,741 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-05-01 07:22:08,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 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) [2021-05-01 07:22:08,741 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-05-01 07:22:08,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-01 07:22:08,741 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:08,741 INFO L519 BasicCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:08,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-01 07:22:08,742 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:08,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:08,742 INFO L82 PathProgramCache]: Analyzing trace with hash -2142945972, now seen corresponding path program 11 times [2021-05-01 07:22:08,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:08,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714568397] [2021-05-01 07:22:08,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:08,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:08,748 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_91 0)) InVars {main_~x~0=v_main_~x~0_91} OutVars{main_~x~0=v_main_~x~0_91} AuxVars[] AssignedVars[] [2021-05-01 07:22:08,751 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:08,758 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,761 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,763 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,765 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,768 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,771 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,773 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,774 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,776 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:08,778 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:08,778 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:08,781 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,783 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,785 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,788 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,790 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:08,799 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:08,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:08,815 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:08,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:08,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:08,857 INFO L142 QuantifierPusher]: treesize reduction 20, result has 4.8 percent of original size [2021-05-01 07:22:08,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:08,858 INFO L142 QuantifierPusher]: treesize reduction 54, result has 29.9 percent of original size [2021-05-01 07:22:08,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:08,872 INFO L142 QuantifierPusher]: treesize reduction 26, result has 81.0 percent of original size [2021-05-01 07:22:08,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-05-01 07:22:08,909 INFO L142 QuantifierPusher]: treesize reduction 25, result has 72.8 percent of original size [2021-05-01 07:22:08,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:22:08,937 INFO L142 QuantifierPusher]: treesize reduction 34, result has 51.4 percent of original size [2021-05-01 07:22:08,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:22:08,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:08,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:08,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:08,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:08,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:09,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:09,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:22:09,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:22:09,041 INFO L142 QuantifierPusher]: treesize reduction 23, result has 73.9 percent of original size [2021-05-01 07:22:09,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,044 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:22:09,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,067 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:09,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,097 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:09,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,129 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:09,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,168 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:09,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,208 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:09,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,252 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:09,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,311 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:22:09,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,368 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:22:09,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,429 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:22:09,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:09,506 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:09,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:09,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:22:09,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:09,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:09,580 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:09,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714568397] [2021-05-01 07:22:09,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [714568397] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:09,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:09,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-01 07:22:09,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144839768] [2021-05-01 07:22:09,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-01 07:22:09,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:09,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-01 07:22:09,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2021-05-01 07:22:09,581 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 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) [2021-05-01 07:22:10,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:10,900 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-05-01 07:22:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-01 07:22:10,901 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 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 [2021-05-01 07:22:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:10,902 INFO L225 Difference]: With dead ends: 33 [2021-05-01 07:22:10,902 INFO L226 Difference]: Without dead ends: 27 [2021-05-01 07:22:10,903 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1527.1ms TimeCoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332 [2021-05-01 07:22:10,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-05-01 07:22:10,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-05-01 07:22:10,911 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) [2021-05-01 07:22:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-05-01 07:22:10,912 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2021-05-01 07:22:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:10,912 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-05-01 07:22:10,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 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) [2021-05-01 07:22:10,912 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-05-01 07:22:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-01 07:22:10,912 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:10,913 INFO L519 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:10,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-01 07:22:10,913 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:10,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:10,913 INFO L82 PathProgramCache]: Analyzing trace with hash -481757710, now seen corresponding path program 12 times [2021-05-01 07:22:10,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:10,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647962555] [2021-05-01 07:22:10,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:10,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:10,922 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_105 0)) InVars {main_~x~0=v_main_~x~0_105} OutVars{main_~x~0=v_main_~x~0_105} AuxVars[] AssignedVars[] [2021-05-01 07:22:10,924 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:10,927 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,929 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,932 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,935 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,937 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,939 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,941 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,942 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,945 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:10,946 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:10,947 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:10,952 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:10,955 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,957 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,959 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,962 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,962 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:10,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:10,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:10,979 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:11,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:11,008 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-05-01 07:22:11,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:22:11,026 INFO L142 QuantifierPusher]: treesize reduction 27, result has 80.0 percent of original size [2021-05-01 07:22:11,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-05-01 07:22:11,062 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.8 percent of original size [2021-05-01 07:22:11,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:22:11,114 INFO L142 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-05-01 07:22:11,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:22:11,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:11,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:11,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:11,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:11,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:11,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:22:11,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:22:11,197 INFO L142 QuantifierPusher]: treesize reduction 23, result has 74.7 percent of original size [2021-05-01 07:22:11,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,200 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:22:11,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,228 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:22:11,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,259 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:22:11,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,296 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:22:11,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,339 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:22:11,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,379 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:22:11,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,424 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:22:11,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,472 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:22:11,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,532 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 07:22:11,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,609 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 07:22:11,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,671 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:22:11,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:11,738 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:22:11,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:22:11,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 07:22:11,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:11,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:11,822 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:11,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647962555] [2021-05-01 07:22:11,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1647962555] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:11,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:11,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-01 07:22:11,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121268541] [2021-05-01 07:22:11,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-01 07:22:11,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:11,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-01 07:22:11,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-05-01 07:22:11,824 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 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) [2021-05-01 07:22:13,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:13,287 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-05-01 07:22:13,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-01 07:22:13,287 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 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 [2021-05-01 07:22:13,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:13,288 INFO L225 Difference]: With dead ends: 34 [2021-05-01 07:22:13,288 INFO L226 Difference]: Without dead ends: 28 [2021-05-01 07:22:13,288 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1726.8ms TimeCoverageRelationStatistics Valid=154, Invalid=1328, Unknown=0, NotChecked=0, Total=1482 [2021-05-01 07:22:13,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-05-01 07:22:13,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-05-01 07:22:13,297 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) [2021-05-01 07:22:13,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2021-05-01 07:22:13,297 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2021-05-01 07:22:13,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:13,298 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2021-05-01 07:22:13,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 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) [2021-05-01 07:22:13,298 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2021-05-01 07:22:13,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-01 07:22:13,298 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:13,298 INFO L519 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:13,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-01 07:22:13,298 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:13,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:13,302 INFO L82 PathProgramCache]: Analyzing trace with hash -524529140, now seen corresponding path program 13 times [2021-05-01 07:22:13,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:13,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657404660] [2021-05-01 07:22:13,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:13,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:13,309 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_120 0)) InVars {main_~x~0=v_main_~x~0_120} OutVars{main_~x~0=v_main_~x~0_120} AuxVars[] AssignedVars[] [2021-05-01 07:22:13,311 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:13,311 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,313 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:13,314 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:13,315 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:13,317 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,318 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,320 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,322 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,325 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:13,334 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,336 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,338 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,341 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,343 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,345 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,347 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,347 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:13,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:13,365 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:13,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:13,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:13,384 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:22:13,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:13,385 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-05-01 07:22:13,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:22:13,404 INFO L142 QuantifierPusher]: treesize reduction 22, result has 74.4 percent of original size [2021-05-01 07:22:13,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:22:13,455 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-05-01 07:22:13,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:13,506 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-05-01 07:22:13,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:22:13,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:13,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:13,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:13,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:13,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:13,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:13,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:13,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:13,577 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:22:13,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:22:13,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,599 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:13,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,623 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:13,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,651 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:13,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,682 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:13,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,721 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:13,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,766 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:13,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,817 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:22:13,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,877 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:22:13,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:13,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:13,940 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:13,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:13,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:22:14,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:14,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:14,005 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:14,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:14,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:22:14,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:14,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:14,072 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:14,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:14,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:22:14,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:14,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:14,146 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:14,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:14,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:22:14,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:14,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:14,224 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:14,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657404660] [2021-05-01 07:22:14,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1657404660] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:14,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:14,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-05-01 07:22:14,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140747897] [2021-05-01 07:22:14,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-01 07:22:14,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:14,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-01 07:22:14,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2021-05-01 07:22:14,226 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 19 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) [2021-05-01 07:22:15,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:15,873 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-05-01 07:22:15,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-01 07:22:15,874 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.15) internal successors, (23), 19 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 [2021-05-01 07:22:15,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:15,874 INFO L225 Difference]: With dead ends: 35 [2021-05-01 07:22:15,874 INFO L226 Difference]: Without dead ends: 29 [2021-05-01 07:22:15,875 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1891.3ms TimeCoverageRelationStatistics Valid=134, Invalid=1506, Unknown=0, NotChecked=0, Total=1640 [2021-05-01 07:22:15,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-01 07:22:15,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-05-01 07:22:15,884 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) [2021-05-01 07:22:15,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-05-01 07:22:15,884 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2021-05-01 07:22:15,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:15,884 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-05-01 07:22:15,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 20 states have (on average 1.15) internal successors, (23), 19 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) [2021-05-01 07:22:15,885 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-05-01 07:22:15,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-01 07:22:15,885 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:15,885 INFO L519 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:15,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-01 07:22:15,885 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:15,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:15,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1850443470, now seen corresponding path program 14 times [2021-05-01 07:22:15,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:15,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607312000] [2021-05-01 07:22:15,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:15,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:15,897 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_136 0)) InVars {main_~x~0=v_main_~x~0_136} OutVars{main_~x~0=v_main_~x~0_136} AuxVars[] AssignedVars[] [2021-05-01 07:22:15,899 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:15,903 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,905 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,907 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,909 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,911 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,913 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,922 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,923 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,926 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:15,927 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:15,927 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:15,930 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:15,933 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,935 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,937 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,939 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,940 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:15,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:15,957 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:15,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:15,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:15,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:15,979 INFO L142 QuantifierPusher]: treesize reduction 20, result has 4.8 percent of original size [2021-05-01 07:22:15,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:15,980 INFO L142 QuantifierPusher]: treesize reduction 38, result has 37.7 percent of original size [2021-05-01 07:22:15,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:15,994 INFO L142 QuantifierPusher]: treesize reduction 78, result has 48.3 percent of original size [2021-05-01 07:22:15,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:22:16,027 INFO L142 QuantifierPusher]: treesize reduction 56, result has 49.5 percent of original size [2021-05-01 07:22:16,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:16,056 INFO L142 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-05-01 07:22:16,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:22:16,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:16,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:16,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:16,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:16,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:16,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:16,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:16,131 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:22:16,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,133 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:22:16,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,155 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:16,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,180 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:16,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,209 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:16,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,244 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:16,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,284 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:16,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,330 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:16,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,379 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:22:16,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,444 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:22:16,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,507 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:22:16,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,575 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:22:16,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,652 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:22:16,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,737 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:22:16,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:16,828 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:16,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:16,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:22:16,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:16,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:16,919 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:16,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607312000] [2021-05-01 07:22:16,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [607312000] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:16,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:16,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-01 07:22:16,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741392476] [2021-05-01 07:22:16,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-01 07:22:16,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:16,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-01 07:22:16,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2021-05-01 07:22:16,920 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 20 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) [2021-05-01 07:22:18,665 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 78 [2021-05-01 07:22:18,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:18,830 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-05-01 07:22:18,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-01 07:22:18,831 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 20 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 [2021-05-01 07:22:18,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:18,832 INFO L225 Difference]: With dead ends: 36 [2021-05-01 07:22:18,832 INFO L226 Difference]: Without dead ends: 30 [2021-05-01 07:22:18,833 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 2144.0ms TimeCoverageRelationStatistics Valid=142, Invalid=1664, Unknown=0, NotChecked=0, Total=1806 [2021-05-01 07:22:18,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-05-01 07:22:18,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-05-01 07:22:18,844 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) [2021-05-01 07:22:18,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-05-01 07:22:18,846 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2021-05-01 07:22:18,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:18,846 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-05-01 07:22:18,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 20 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) [2021-05-01 07:22:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-05-01 07:22:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-01 07:22:18,848 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:18,848 INFO L519 BasicCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:18,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-01 07:22:18,849 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:18,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:18,849 INFO L82 PathProgramCache]: Analyzing trace with hash -4114740, now seen corresponding path program 15 times [2021-05-01 07:22:18,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:18,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133905924] [2021-05-01 07:22:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:18,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:18,859 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_153 0)) InVars {main_~x~0=v_main_~x~0_153} OutVars{main_~x~0=v_main_~x~0_153} AuxVars[] AssignedVars[] [2021-05-01 07:22:18,862 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:18,864 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,868 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:18,870 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:18,871 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:18,875 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,878 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,881 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,885 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,888 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:18,892 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,895 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,898 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,901 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,904 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,907 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,910 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,911 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:18,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:22:18,934 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:18,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:18,961 INFO L142 QuantifierPusher]: treesize reduction 7, result has 69.6 percent of original size [2021-05-01 07:22:18,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 07:22:18,975 INFO L142 QuantifierPusher]: treesize reduction 56, result has 52.5 percent of original size [2021-05-01 07:22:18,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:22:19,009 INFO L142 QuantifierPusher]: treesize reduction 13, result has 76.8 percent of original size [2021-05-01 07:22:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 07:22:19,039 INFO L142 QuantifierPusher]: treesize reduction 28, result has 30.0 percent of original size [2021-05-01 07:22:19,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:22:19,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:19,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:19,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:19,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:19,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:19,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:19,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:22:19,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:22:19,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,144 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-05-01 07:22:19,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:19,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,188 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:19,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,231 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:19,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,284 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:22:19,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,341 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:22:19,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,408 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:22:19,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,479 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:22:19,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,564 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:22:19,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,650 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:22:19,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,742 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:22:19,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,841 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:22:19,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:19,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:19,942 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:19,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:19,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:22:20,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:20,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:20,055 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:20,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:20,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:22:20,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:20,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:20,193 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:20,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:22:20,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:20,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:20,344 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:20,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:20,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:22:20,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:20,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:20,493 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:20,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133905924] [2021-05-01 07:22:20,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1133905924] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:20,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:20,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-05-01 07:22:20,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188240460] [2021-05-01 07:22:20,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-01 07:22:20,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:20,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-01 07:22:20,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-05-01 07:22:20,495 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 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) [2021-05-01 07:22:22,816 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 79 [2021-05-01 07:22:23,059 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-05-01 07:22:23,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:23,211 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-05-01 07:22:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-01 07:22:23,212 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 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 [2021-05-01 07:22:23,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:23,213 INFO L225 Difference]: With dead ends: 37 [2021-05-01 07:22:23,213 INFO L226 Difference]: Without dead ends: 31 [2021-05-01 07:22:23,214 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 3215.1ms TimeCoverageRelationStatistics Valid=177, Invalid=1803, Unknown=0, NotChecked=0, Total=1980 [2021-05-01 07:22:23,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-05-01 07:22:23,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-05-01 07:22:23,229 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) [2021-05-01 07:22:23,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-05-01 07:22:23,229 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2021-05-01 07:22:23,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:23,230 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-05-01 07:22:23,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 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) [2021-05-01 07:22:23,230 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-05-01 07:22:23,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-01 07:22:23,230 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:23,230 INFO L519 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:23,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-01 07:22:23,231 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:23,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:23,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1397501042, now seen corresponding path program 16 times [2021-05-01 07:22:23,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:23,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703437716] [2021-05-01 07:22:23,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:23,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:23,242 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_171 0)) InVars {main_~x~0=v_main_~x~0_171} OutVars{main_~x~0=v_main_~x~0_171} AuxVars[] AssignedVars[] [2021-05-01 07:22:23,245 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:23,247 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,251 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:23,253 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:23,254 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:23,257 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,260 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,263 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,266 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,269 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:23,272 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,275 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,278 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,280 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,282 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,284 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,287 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,288 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:23,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:23,306 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:23,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:23,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:23,362 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-05-01 07:22:23,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:22:23,373 INFO L142 QuantifierPusher]: treesize reduction 30, result has 56.5 percent of original size [2021-05-01 07:22:23,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 07:22:23,406 INFO L142 QuantifierPusher]: treesize reduction 27, result has 71.6 percent of original size [2021-05-01 07:22:23,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:22:23,454 INFO L142 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size [2021-05-01 07:22:23,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:23,489 INFO L142 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-05-01 07:22:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:22:23,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:23,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:23,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:23,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:23,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:23,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:23,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:22:23,586 INFO L142 QuantifierPusher]: treesize reduction 17, result has 81.1 percent of original size [2021-05-01 07:22:23,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,589 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:23,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:23,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:22:23,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:23,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:23,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:22:23,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,660 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:23,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:23,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-05-01 07:22:23,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,709 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:23,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:23,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-05-01 07:22:23,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,760 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:23,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:23,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-05-01 07:22:23,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,815 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:23,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:23,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 07:22:23,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,885 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:23,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 07:22:23,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:23,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:23,960 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:23,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:23,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-05-01 07:22:24,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:24,039 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:24,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:24,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-05-01 07:22:24,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:24,133 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:24,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:24,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-05-01 07:22:24,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:24,228 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:24,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:24,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 07:22:24,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:24,329 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:24,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:24,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-05-01 07:22:24,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:24,439 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:24,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:24,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 07:22:24,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:24,560 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:24,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:24,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 07:22:24,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:24,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:24,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:24,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-05-01 07:22:24,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:24,845 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:24,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:24,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 07:22:24,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:24,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:24,995 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:24,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703437716] [2021-05-01 07:22:24,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [703437716] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:24,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:24,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-05-01 07:22:24,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297783778] [2021-05-01 07:22:24,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-01 07:22:24,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:24,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-01 07:22:24,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-05-01 07:22:24,997 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 25 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 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) [2021-05-01 07:22:27,574 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 74 [2021-05-01 07:22:27,810 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 78 [2021-05-01 07:22:27,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:27,870 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2021-05-01 07:22:27,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-01 07:22:27,871 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 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 [2021-05-01 07:22:27,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:27,872 INFO L225 Difference]: With dead ends: 38 [2021-05-01 07:22:27,872 INFO L226 Difference]: Without dead ends: 32 [2021-05-01 07:22:27,873 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 3561.8ms TimeCoverageRelationStatistics Valid=216, Invalid=2136, Unknown=0, NotChecked=0, Total=2352 [2021-05-01 07:22:27,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-05-01 07:22:27,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-05-01 07:22:27,885 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) [2021-05-01 07:22:27,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-05-01 07:22:27,885 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2021-05-01 07:22:27,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:27,886 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-05-01 07:22:27,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 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) [2021-05-01 07:22:27,886 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-05-01 07:22:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-01 07:22:27,886 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:27,886 INFO L519 BasicCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:27,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-01 07:22:27,887 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:27,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:27,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1897917324, now seen corresponding path program 17 times [2021-05-01 07:22:27,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:27,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867930450] [2021-05-01 07:22:27,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:27,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:27,895 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_190 0)) InVars {main_~x~0=v_main_~x~0_190} OutVars{main_~x~0=v_main_~x~0_190} AuxVars[] AssignedVars[] [2021-05-01 07:22:27,898 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:27,899 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,902 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:27,903 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:27,904 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:27,908 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,911 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,914 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,917 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,921 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:27,924 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,926 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,929 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,931 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,934 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,936 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,938 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,939 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:27,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:27,959 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:27,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:27,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:27,982 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-05-01 07:22:27,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 07:22:28,007 INFO L142 QuantifierPusher]: treesize reduction 7, result has 86.0 percent of original size [2021-05-01 07:22:28,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-05-01 07:22:28,030 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size [2021-05-01 07:22:28,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 07:22:28,050 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:22:28,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:22:28,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:28,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:28,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:28,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:28,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:28,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:28,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:22:28,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:28,143 INFO L142 QuantifierPusher]: treesize reduction 23, result has 74.7 percent of original size [2021-05-01 07:22:28,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,146 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:22:28,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,175 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:22:28,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,213 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:22:28,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,253 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:22:28,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,302 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:22:28,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,373 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:22:28,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,434 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:22:28,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,506 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:22:28,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 07:22:28,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,669 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 07:22:28,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,765 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:22:28,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,866 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 07:22:28,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:28,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:28,998 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:28,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:29,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-05-01 07:22:29,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:29,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:29,156 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:29,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:29,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:22:29,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:29,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:29,300 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:29,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:29,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 07:22:29,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:29,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:29,443 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:29,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:29,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 07:22:29,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:29,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:29,600 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:29,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:29,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 07:22:29,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:29,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:29,753 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:29,753 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867930450] [2021-05-01 07:22:29,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [867930450] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:29,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:29,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-05-01 07:22:29,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956203741] [2021-05-01 07:22:29,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-01 07:22:29,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:29,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-01 07:22:29,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2021-05-01 07:22:29,755 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 23 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) [2021-05-01 07:22:32,407 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 77 [2021-05-01 07:22:32,639 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 81 [2021-05-01 07:22:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:32,769 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2021-05-01 07:22:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-01 07:22:32,770 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.125) internal successors, (27), 23 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 [2021-05-01 07:22:32,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:32,771 INFO L225 Difference]: With dead ends: 39 [2021-05-01 07:22:32,771 INFO L226 Difference]: Without dead ends: 33 [2021-05-01 07:22:32,772 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 3719.5ms TimeCoverageRelationStatistics Valid=193, Invalid=2159, Unknown=0, NotChecked=0, Total=2352 [2021-05-01 07:22:32,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-01 07:22:32,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-05-01 07:22:32,784 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) [2021-05-01 07:22:32,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-05-01 07:22:32,784 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2021-05-01 07:22:32,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:32,785 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-05-01 07:22:32,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 24 states have (on average 1.125) internal successors, (27), 23 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) [2021-05-01 07:22:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-05-01 07:22:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-01 07:22:32,785 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:32,785 INFO L519 BasicCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:32,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-01 07:22:32,786 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:32,786 INFO L82 PathProgramCache]: Analyzing trace with hash 230952882, now seen corresponding path program 18 times [2021-05-01 07:22:32,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:32,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169106698] [2021-05-01 07:22:32,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:32,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:32,800 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_210 0)) InVars {main_~x~0=v_main_~x~0_210} OutVars{main_~x~0=v_main_~x~0_210} AuxVars[] AssignedVars[] [2021-05-01 07:22:32,802 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:32,805 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,808 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,811 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,814 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,816 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,819 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,821 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,822 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,825 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:32,827 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:32,828 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:32,831 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:32,835 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,838 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,841 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,844 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,845 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:32,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:22:32,867 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:32,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:32,903 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-05-01 07:22:32,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:22:32,912 INFO L142 QuantifierPusher]: treesize reduction 14, result has 80.3 percent of original size [2021-05-01 07:22:32,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:22:32,935 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size [2021-05-01 07:22:32,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-01 07:22:32,948 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:22:32,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:22:32,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:32,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:32,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:32,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:32,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:33,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:33,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:22:33,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:22:33,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,041 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-05-01 07:22:33,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:22:33,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,075 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:22:33,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,116 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:22:33,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,161 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:22:33,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,215 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:22:33,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,276 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 07:22:33,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,343 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 07:22:33,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,437 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:22:33,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,542 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 07:22:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,653 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-05-01 07:22:33,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,776 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:22:33,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:33,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:33,917 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:33,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:33,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 07:22:34,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:34,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:34,054 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:34,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:34,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 07:22:34,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:34,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:34,214 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:34,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:34,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 07:22:34,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:34,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:34,371 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:34,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:34,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 07:22:34,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:34,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:34,553 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:34,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:34,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 07:22:34,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:34,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:34,718 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:34,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:34,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-05-01 07:22:34,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:34,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:34,906 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:22:34,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:34,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-05-01 07:22:35,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:35,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:35,120 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:35,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169106698] [2021-05-01 07:22:35,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1169106698] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:35,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:35,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-05-01 07:22:35,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154556957] [2021-05-01 07:22:35,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-01 07:22:35,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:35,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-01 07:22:35,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2021-05-01 07:22:35,122 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 24 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) [2021-05-01 07:22:38,337 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 78 [2021-05-01 07:22:38,588 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 83 [2021-05-01 07:22:38,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:38,727 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2021-05-01 07:22:38,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-01 07:22:38,728 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.12) internal successors, (28), 24 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 [2021-05-01 07:22:38,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:38,729 INFO L225 Difference]: With dead ends: 40 [2021-05-01 07:22:38,730 INFO L226 Difference]: Without dead ends: 34 [2021-05-01 07:22:38,731 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 4513.3ms TimeCoverageRelationStatistics Valid=202, Invalid=2348, Unknown=0, NotChecked=0, Total=2550 [2021-05-01 07:22:38,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-05-01 07:22:38,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-05-01 07:22:38,747 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) [2021-05-01 07:22:38,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2021-05-01 07:22:38,747 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2021-05-01 07:22:38,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:38,748 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2021-05-01 07:22:38,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 25 states have (on average 1.12) internal successors, (28), 24 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) [2021-05-01 07:22:38,748 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2021-05-01 07:22:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-01 07:22:38,748 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:38,748 INFO L519 BasicCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:38,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-01 07:22:38,749 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:38,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:38,749 INFO L82 PathProgramCache]: Analyzing trace with hash 94662732, now seen corresponding path program 19 times [2021-05-01 07:22:38,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:38,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251933072] [2021-05-01 07:22:38,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:38,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:38,760 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_231 0)) InVars {main_~x~0=v_main_~x~0_231} OutVars{main_~x~0=v_main_~x~0_231} AuxVars[] AssignedVars[] [2021-05-01 07:22:38,763 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:38,767 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,772 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,775 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,779 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,782 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,785 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,789 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,791 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,794 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:38,796 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:38,797 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:38,802 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,805 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,807 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,809 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,813 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:38,814 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:38,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:22:38,834 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:38,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:38,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:38,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:38,860 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-05-01 07:22:38,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:22:38,870 INFO L142 QuantifierPusher]: treesize reduction 40, result has 38.5 percent of original size [2021-05-01 07:22:38,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 07:22:38,894 INFO L142 QuantifierPusher]: treesize reduction 34, result has 73.8 percent of original size [2021-05-01 07:22:38,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-05-01 07:22:38,975 INFO L142 QuantifierPusher]: treesize reduction 26, result has 76.4 percent of original size [2021-05-01 07:22:38,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 07:22:39,008 INFO L142 QuantifierPusher]: treesize reduction 56, result has 39.1 percent of original size [2021-05-01 07:22:39,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:22:39,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:39,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:39,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:39,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:39,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:39,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:22:39,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:39,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,116 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-05-01 07:22:39,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:39,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-05-01 07:22:39,160 INFO L142 QuantifierPusher]: treesize reduction 23, result has 77.7 percent of original size [2021-05-01 07:22:39,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,162 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:22:39,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,202 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:22:39,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,249 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-05-01 07:22:39,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 07:22:39,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,364 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-05-01 07:22:39,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,435 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-05-01 07:22:39,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,516 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-05-01 07:22:39,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,598 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-05-01 07:22:39,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,696 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-05-01 07:22:39,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,794 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-05-01 07:22:39,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:39,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:39,897 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:39,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:39,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-05-01 07:22:40,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:40,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:40,015 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:40,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:40,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-05-01 07:22:40,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:40,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:40,143 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:40,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:40,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-05-01 07:22:40,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:40,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:40,290 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:40,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:40,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-05-01 07:22:40,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:40,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:40,468 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:40,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:40,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-05-01 07:22:40,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:40,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:40,655 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:40,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:40,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-05-01 07:22:40,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:40,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:40,848 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:40,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:40,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-05-01 07:22:41,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:41,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:41,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-05-01 07:22:41,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:22:41,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 07:22:41,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:41,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:41,292 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:41,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251933072] [2021-05-01 07:22:41,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [251933072] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:41,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:41,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-01 07:22:41,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063294388] [2021-05-01 07:22:41,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-01 07:22:41,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:41,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-01 07:22:41,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2021-05-01 07:22:41,294 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 28 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 26 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) [2021-05-01 07:22:44,892 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 77 [2021-05-01 07:22:45,144 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 82 [2021-05-01 07:22:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:45,195 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-05-01 07:22:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-01 07:22:45,195 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 26 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 [2021-05-01 07:22:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:45,196 INFO L225 Difference]: With dead ends: 41 [2021-05-01 07:22:45,196 INFO L226 Difference]: Without dead ends: 35 [2021-05-01 07:22:45,197 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 5114.1ms TimeCoverageRelationStatistics Valid=243, Invalid=2727, Unknown=0, NotChecked=0, Total=2970 [2021-05-01 07:22:45,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-01 07:22:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-05-01 07:22:45,212 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) [2021-05-01 07:22:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-05-01 07:22:45,212 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2021-05-01 07:22:45,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:45,212 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2021-05-01 07:22:45,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 26 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) [2021-05-01 07:22:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-05-01 07:22:45,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-01 07:22:45,213 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:45,213 INFO L519 BasicCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:45,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-01 07:22:45,213 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:45,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:45,214 INFO L82 PathProgramCache]: Analyzing trace with hash 164635378, now seen corresponding path program 20 times [2021-05-01 07:22:45,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:45,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661056775] [2021-05-01 07:22:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:45,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:45,219 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_253 0)) InVars {main_~x~0=v_main_~x~0_253} OutVars{main_~x~0=v_main_~x~0_253} AuxVars[] AssignedVars[] [2021-05-01 07:22:45,221 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:45,222 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,224 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:45,225 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:45,225 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:45,228 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:45,231 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,233 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,235 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,237 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,239 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,241 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,242 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,244 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,246 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,248 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,250 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,250 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:45,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:45,267 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:45,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:45,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:45,290 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-05-01 07:22:45,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:22:45,298 INFO L142 QuantifierPusher]: treesize reduction 60, result has 29.4 percent of original size [2021-05-01 07:22:45,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 07:22:45,319 INFO L142 QuantifierPusher]: treesize reduction 46, result has 74.0 percent of original size [2021-05-01 07:22:45,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:22:45,419 INFO L142 QuantifierPusher]: treesize reduction 38, result has 75.2 percent of original size [2021-05-01 07:22:45,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-05-01 07:22:45,451 INFO L142 QuantifierPusher]: treesize reduction 75, result has 40.5 percent of original size [2021-05-01 07:22:45,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:45,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:45,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:45,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:45,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:45,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:45,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:22:45,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 07:22:45,546 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.8 percent of original size [2021-05-01 07:22:45,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:45,548 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:45,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:45,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:22:45,582 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-05-01 07:22:45,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-05-01 07:22:45,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,604 INFO L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-05-01 07:22:45,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,627 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.0 percent of original size 34 [2021-05-01 07:22:45,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,653 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-05-01 07:22:45,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,683 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-05-01 07:22:45,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:22:45,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,757 INFO L147 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size 54 [2021-05-01 07:22:45,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,799 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-05-01 07:22:45,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,844 INFO L147 QuantifierPusher]: treesize reduction 2, result has 96.8 percent of original size 60 [2021-05-01 07:22:45,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,899 INFO L147 QuantifierPusher]: treesize reduction 2, result has 97.1 percent of original size 66 [2021-05-01 07:22:45,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:45,954 INFO L147 QuantifierPusher]: treesize reduction 2, result has 97.3 percent of original size 72 [2021-05-01 07:22:46,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,012 INFO L147 QuantifierPusher]: treesize reduction 2, result has 97.5 percent of original size 78 [2021-05-01 07:22:46,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,075 INFO L147 QuantifierPusher]: treesize reduction 12, result has 86.0 percent of original size 74 [2021-05-01 07:22:46,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,142 INFO L147 QuantifierPusher]: treesize reduction 2, result has 97.6 percent of original size 80 [2021-05-01 07:22:46,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:22:46,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,289 INFO L147 QuantifierPusher]: treesize reduction 10, result has 89.6 percent of original size 86 [2021-05-01 07:22:46,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,371 INFO L147 QuantifierPusher]: treesize reduction 4, result has 95.7 percent of original size 90 [2021-05-01 07:22:46,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,458 INFO L147 QuantifierPusher]: treesize reduction 6, result has 94.0 percent of original size 94 [2021-05-01 07:22:46,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,564 INFO L147 QuantifierPusher]: treesize reduction 4, result has 96.1 percent of original size 98 [2021-05-01 07:22:46,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:46,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:46,694 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:46,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661056775] [2021-05-01 07:22:46,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1661056775] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:46,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:46,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-05-01 07:22:46,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014408425] [2021-05-01 07:22:46,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-01 07:22:46,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:46,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-01 07:22:46,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2021-05-01 07:22:46,696 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 27 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) [2021-05-01 07:22:49,446 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-05-01 07:22:49,719 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 63 [2021-05-01 07:22:49,961 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 68 [2021-05-01 07:22:50,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:50,142 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-05-01 07:22:50,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-01 07:22:50,143 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 27 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 [2021-05-01 07:22:50,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:50,143 INFO L225 Difference]: With dead ends: 42 [2021-05-01 07:22:50,143 INFO L226 Difference]: Without dead ends: 36 [2021-05-01 07:22:50,144 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 3914.0ms TimeCoverageRelationStatistics Valid=291, Invalid=2901, Unknown=0, NotChecked=0, Total=3192 [2021-05-01 07:22:50,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-05-01 07:22:50,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-05-01 07:22:50,162 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) [2021-05-01 07:22:50,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-05-01 07:22:50,163 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2021-05-01 07:22:50,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:50,163 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-05-01 07:22:50,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 27 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) [2021-05-01 07:22:50,164 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-05-01 07:22:50,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-01 07:22:50,164 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:50,164 INFO L519 BasicCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:50,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-01 07:22:50,164 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:50,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179892, now seen corresponding path program 21 times [2021-05-01 07:22:50,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:50,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775239209] [2021-05-01 07:22:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:50,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:50,191 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_276 0)) InVars {main_~x~0=v_main_~x~0_276} OutVars{main_~x~0=v_main_~x~0_276} AuxVars[] AssignedVars[] [2021-05-01 07:22:50,197 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:50,198 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,202 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:50,204 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:50,205 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:50,208 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:50,212 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,216 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,219 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,223 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,226 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,238 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,241 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,243 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,246 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,248 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,250 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,251 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:50,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:50,282 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:50,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:50,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:50,321 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:22:50,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:50,323 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-05-01 07:22:50,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:22:50,354 INFO L142 QuantifierPusher]: treesize reduction 54, result has 54.2 percent of original size [2021-05-01 07:22:50,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:22:50,440 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-05-01 07:22:50,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:50,518 INFO L142 QuantifierPusher]: treesize reduction 51, result has 41.4 percent of original size [2021-05-01 07:22:50,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:22:50,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:50,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:50,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:50,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:50,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:50,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:50,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:50,624 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:22:50,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,626 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:50,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:50,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:22:50,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,656 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:50,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:50,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:50,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,695 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:50,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:50,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:50,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,741 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:50,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:50,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:50,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,796 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:50,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:50,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:50,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,850 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:50,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:50,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:50,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,914 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:50,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:50,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:50,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:50,997 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:50,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:50,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:22:51,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:51,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:51,082 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:51,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:51,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:22:51,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:51,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:51,178 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:51,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:51,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:22:51,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:51,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:51,284 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:51,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:51,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:22:51,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:51,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:51,395 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:51,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:51,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:22:51,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:51,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:51,533 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:51,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:51,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:22:51,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:51,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:51,689 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:51,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:51,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:22:51,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:51,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:51,857 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:51,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:51,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:22:52,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:52,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:52,023 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:52,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:52,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:22:52,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:52,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:52,177 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:52,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:52,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:22:52,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:52,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:52,342 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:52,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:52,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:22:52,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:52,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:52,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:52,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:52,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:22:52,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:52,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:52,714 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:52,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:52,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-05-01 07:22:52,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:52,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:52,915 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:52,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:52,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 07:22:53,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:53,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:53,106 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:53,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775239209] [2021-05-01 07:22:53,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [775239209] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:53,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:53,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-05-01 07:22:53,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581122828] [2021-05-01 07:22:53,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-01 07:22:53,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:53,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-01 07:22:53,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=867, Unknown=0, NotChecked=0, Total=930 [2021-05-01 07:22:53,108 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 29 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 27 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) [2021-05-01 07:22:56,583 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:22:56,862 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:22:57,151 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:22:57,581 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 73 [2021-05-01 07:22:57,954 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2021-05-01 07:22:58,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:58,230 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2021-05-01 07:22:58,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-01 07:22:58,232 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 27 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 [2021-05-01 07:22:58,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:58,233 INFO L225 Difference]: With dead ends: 43 [2021-05-01 07:22:58,233 INFO L226 Difference]: Without dead ends: 37 [2021-05-01 07:22:58,234 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 6080.6ms TimeCoverageRelationStatistics Valid=182, Invalid=3010, Unknown=0, NotChecked=0, Total=3192 [2021-05-01 07:22:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-01 07:22:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-05-01 07:22:58,252 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) [2021-05-01 07:22:58,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2021-05-01 07:22:58,252 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2021-05-01 07:22:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:58,253 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2021-05-01 07:22:58,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 27 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) [2021-05-01 07:22:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2021-05-01 07:22:58,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-01 07:22:58,253 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:58,253 INFO L519 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:58,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-01 07:22:58,254 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:58,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:58,254 INFO L82 PathProgramCache]: Analyzing trace with hash 858023474, now seen corresponding path program 22 times [2021-05-01 07:22:58,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:58,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259267599] [2021-05-01 07:22:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:58,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:58,265 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_300 0)) InVars {main_~x~0=v_main_~x~0_300} OutVars{main_~x~0=v_main_~x~0_300} AuxVars[] AssignedVars[] [2021-05-01 07:22:58,268 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:22:58,269 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,273 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:22:58,276 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:58,277 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:22:58,281 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,285 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,289 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,292 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,296 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:22:58,300 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,303 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,306 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,310 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,313 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,317 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,321 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,322 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:22:58,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:58,353 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:58,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:58,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:58,374 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:22:58,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:58,376 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-05-01 07:22:58,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:58,397 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:22:58,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:58,448 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.7 percent of original size [2021-05-01 07:22:58,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:22:58,477 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:22:58,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:22:58,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:58,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:58,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:58,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:58,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:22:58,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:22:58,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:22:58,576 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:22:58,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:58,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:58,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:22:58,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,612 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:58,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:58,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:22:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,649 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:58,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:58,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:22:58,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:58,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:58,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:22:58,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,740 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:58,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:58,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:22:58,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,793 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:58,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:58,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:22:58,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,863 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:58,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:58,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:22:58,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:58,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:58,951 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:58,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:58,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:22:59,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:59,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:59,037 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:59,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:59,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:22:59,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:59,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:59,132 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:59,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:59,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:22:59,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:59,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:59,254 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:59,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:59,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:22:59,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:59,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:59,369 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:59,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:59,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:22:59,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:59,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:59,491 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:59,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:59,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:22:59,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:59,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:59,617 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:59,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:59,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:22:59,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:59,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:59,772 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:59,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:59,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:22:59,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:59,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:59,960 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:22:59,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:22:59,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:23:00,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:00,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:00,150 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:23:00,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:23:00,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:23:00,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:00,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:00,327 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:23:00,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:23:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:23:00,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:00,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:00,520 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:23:00,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:23:00,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:23:00,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:00,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:00,709 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:23:00,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:23:00,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-05-01 07:23:00,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:00,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:00,907 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:23:00,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:23:00,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 07:23:01,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:01,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:01,118 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:23:01,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:23:01,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 07:23:01,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:01,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:01,357 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:01,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259267599] [2021-05-01 07:23:01,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [259267599] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:01,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:01,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-05-01 07:23:01,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852317250] [2021-05-01 07:23:01,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-01 07:23:01,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:01,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-01 07:23:01,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=925, Unknown=0, NotChecked=0, Total=992 [2021-05-01 07:23:01,358 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 30 states, 29 states have (on average 1.103448275862069) internal successors, (32), 28 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) [2021-05-01 07:23:05,097 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:23:05,334 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:23:05,588 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:23:05,845 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 07:23:06,219 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 73 [2021-05-01 07:23:06,517 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 78 [2021-05-01 07:23:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:06,777 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2021-05-01 07:23:06,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-01 07:23:06,778 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.103448275862069) internal successors, (32), 28 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 [2021-05-01 07:23:06,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:06,778 INFO L225 Difference]: With dead ends: 44 [2021-05-01 07:23:06,779 INFO L226 Difference]: Without dead ends: 38 [2021-05-01 07:23:06,780 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 6491.2ms TimeCoverageRelationStatistics Valid=190, Invalid=3232, Unknown=0, NotChecked=0, Total=3422 [2021-05-01 07:23:06,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-05-01 07:23:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-05-01 07:23:06,799 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) [2021-05-01 07:23:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-05-01 07:23:06,800 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2021-05-01 07:23:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:06,800 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-05-01 07:23:06,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 29 states have (on average 1.103448275862069) internal successors, (32), 28 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) [2021-05-01 07:23:06,800 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-05-01 07:23:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-01 07:23:06,800 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:06,801 INFO L519 BasicCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:06,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-01 07:23:06,804 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:06,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:06,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1940985396, now seen corresponding path program 23 times [2021-05-01 07:23:06,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:06,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174322262] [2021-05-01 07:23:06,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:06,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:06,816 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_325 0)) InVars {main_~x~0=v_main_~x~0_325} OutVars{main_~x~0=v_main_~x~0_325} AuxVars[] AssignedVars[] [2021-05-01 07:23:06,819 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:23:06,822 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,825 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,829 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,832 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,836 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,839 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,842 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,845 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,848 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:23:06,850 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:23:06,851 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:23:06,855 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,858 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,862 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,865 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,869 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:23:06,870 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:23:06,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:23:06,895 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:06,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:06,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:06,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:06,914 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-05-01 07:23:06,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:06,921 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.5 percent of original size [2021-05-01 07:23:06,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 07:23:06,969 INFO L142 QuantifierPusher]: treesize reduction 27, result has 71.6 percent of original size [2021-05-01 07:23:06,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:23:07,037 INFO L142 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size [2021-05-01 07:23:07,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:07,088 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:23:07,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:23:07,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:07,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:07,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:07,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:07,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:23:07,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:23:07,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-05-01 07:23:07,224 INFO L142 QuantifierPusher]: treesize reduction 17, result has 82.7 percent of original size [2021-05-01 07:23:07,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,228 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 07:23:07,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,277 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 07:23:07,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,325 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-05-01 07:23:07,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,383 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-05-01 07:23:07,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,448 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 07:23:07,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,519 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 07:23:07,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,599 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-05-01 07:23:07,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 07:23:07,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,801 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-05-01 07:23:07,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:07,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:07,920 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:07,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:07,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-05-01 07:23:08,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:08,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:08,040 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:08,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:08,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 07:23:08,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:08,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:08,179 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:08,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:08,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-05-01 07:23:08,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:08,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:08,326 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:08,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-05-01 07:23:08,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:08,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:08,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:08,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:08,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-05-01 07:23:08,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:08,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:08,647 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:08,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:08,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-05-01 07:23:08,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:08,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:08,833 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:08,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:08,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-05-01 07:23:08,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:08,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:08,982 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:08,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:08,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 07:23:09,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:09,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:09,114 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:09,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:09,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-05-01 07:23:09,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:09,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:09,254 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:09,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:09,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-05-01 07:23:09,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:09,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:09,398 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:09,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:09,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-05-01 07:23:09,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:09,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:09,558 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:09,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:09,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-05-01 07:23:09,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:09,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:09,809 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:09,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:09,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-05-01 07:23:09,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:09,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:09,978 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:23:09,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:23:09,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 07:23:10,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:10,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:10,156 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:10,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174322262] [2021-05-01 07:23:10,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1174322262] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:10,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:10,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-05-01 07:23:10,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012916440] [2021-05-01 07:23:10,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-01 07:23:10,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:10,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-01 07:23:10,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1051, Unknown=0, NotChecked=0, Total=1122 [2021-05-01 07:23:10,158 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand has 32 states, 31 states have (on average 1.064516129032258) internal successors, (33), 30 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) [2021-05-01 07:23:11,627 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-05-01 07:23:11,819 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2021-05-01 07:23:12,032 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2021-05-01 07:23:12,309 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2021-05-01 07:23:12,668 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2021-05-01 07:23:13,048 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2021-05-01 07:23:13,451 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 106 [2021-05-01 07:23:13,779 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 110 [2021-05-01 07:23:14,093 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2021-05-01 07:23:14,530 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2021-05-01 07:23:14,914 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 122 [2021-05-01 07:23:15,410 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 126 [2021-05-01 07:23:15,815 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 130 [2021-05-01 07:23:16,346 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 134 [2021-05-01 07:23:16,771 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 138 [2021-05-01 07:23:17,207 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2021-05-01 07:23:17,673 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 146 [2021-05-01 07:23:18,100 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2021-05-01 07:23:18,461 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 82 [2021-05-01 07:23:18,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:18,790 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2021-05-01 07:23:18,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-01 07:23:18,791 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.064516129032258) internal successors, (33), 30 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 [2021-05-01 07:23:18,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:18,791 INFO L225 Difference]: With dead ends: 45 [2021-05-01 07:23:18,791 INFO L226 Difference]: Without dead ends: 39 [2021-05-01 07:23:18,793 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 9820.0ms TimeCoverageRelationStatistics Valid=254, Invalid=3652, Unknown=0, NotChecked=0, Total=3906 [2021-05-01 07:23:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-01 07:23:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-05-01 07:23:18,819 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) [2021-05-01 07:23:18,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2021-05-01 07:23:18,820 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2021-05-01 07:23:18,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:18,820 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2021-05-01 07:23:18,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 1.064516129032258) internal successors, (33), 30 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) [2021-05-01 07:23:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2021-05-01 07:23:18,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-01 07:23:18,821 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:18,821 INFO L519 BasicCegarLoop]: trace histogram [24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:18,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-01 07:23:18,821 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:18,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:18,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1484052850, now seen corresponding path program 24 times [2021-05-01 07:23:18,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:18,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585804135] [2021-05-01 07:23:18,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:18,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:18,836 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_351 0)) InVars {main_~x~0=v_main_~x~0_351} OutVars{main_~x~0=v_main_~x~0_351} AuxVars[] AssignedVars[] [2021-05-01 07:23:18,839 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:23:18,843 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,847 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,850 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,853 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,857 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,860 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,863 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,865 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,868 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:23:18,870 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:23:18,871 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:23:18,874 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:23:18,879 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,882 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,886 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,889 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,891 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:23:18,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:23:18,916 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:18,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:18,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:18,940 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-05-01 07:23:18,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 07:23:18,968 INFO L142 QuantifierPusher]: treesize reduction 146, result has 44.1 percent of original size [2021-05-01 07:23:18,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-05-01 07:23:19,039 INFO L142 QuantifierPusher]: treesize reduction 136, result has 39.0 percent of original size [2021-05-01 07:23:19,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-05-01 07:23:19,086 INFO L142 QuantifierPusher]: treesize reduction 144, result has 7.7 percent of original size [2021-05-01 07:23:19,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:23:19,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:19,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:19,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:19,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:19,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:23:19,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:23:19,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:23:19,197 INFO L142 QuantifierPusher]: treesize reduction 23, result has 74.7 percent of original size [2021-05-01 07:23:19,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,200 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:23:19,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,237 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:23:19,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,286 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:23:19,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,345 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:23:19,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,418 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:23:19,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,486 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:23:19,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,567 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:23:19,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,666 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:23:19,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,764 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 07:23:19,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:19,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,869 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:19,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:19,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 07:23:20,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:20,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,007 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:20,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:20,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:23:20,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:20,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,137 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:20,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:20,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 07:23:20,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:20,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,327 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:20,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:20,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-05-01 07:23:20,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:20,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,483 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:20,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:20,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:23:20,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:20,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,658 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:20,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:20,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 07:23:20,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:20,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,844 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:20,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:20,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 07:23:21,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:21,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:21,025 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:21,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:21,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 07:23:21,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:21,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:21,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:21,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:21,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 07:23:21,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:21,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:21,431 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:21,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:21,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 07:23:21,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:21,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:21,659 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:21,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:21,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-05-01 07:23:21,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:21,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:21,901 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:21,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:21,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-05-01 07:23:22,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:22,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:22,058 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:22,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:22,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-05-01 07:23:22,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:22,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:22,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-05-01 07:23:22,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:22,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:22,404 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:23:22,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:23:22,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-05-01 07:23:22,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:22,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:22,590 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:22,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585804135] [2021-05-01 07:23:22,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1585804135] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:22,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:22,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-05-01 07:23:22,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090136259] [2021-05-01 07:23:22,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-01 07:23:22,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:22,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-01 07:23:22,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1027, Unknown=0, NotChecked=0, Total=1122 [2021-05-01 07:23:22,591 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand has 32 states, 31 states have (on average 1.096774193548387) internal successors, (34), 30 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) [2021-05-01 07:23:26,503 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2021-05-01 07:23:26,740 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 82 [2021-05-01 07:23:26,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:26,867 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-05-01 07:23:26,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-01 07:23:26,868 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.096774193548387) internal successors, (34), 30 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 [2021-05-01 07:23:26,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:26,869 INFO L225 Difference]: With dead ends: 46 [2021-05-01 07:23:26,869 INFO L226 Difference]: Without dead ends: 40 [2021-05-01 07:23:26,870 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 6420.9ms TimeCoverageRelationStatistics Valid=250, Invalid=3656, Unknown=0, NotChecked=0, Total=3906 [2021-05-01 07:23:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-05-01 07:23:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-05-01 07:23:26,889 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) [2021-05-01 07:23:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-05-01 07:23:26,889 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2021-05-01 07:23:26,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:26,889 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-05-01 07:23:26,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 1.096774193548387) internal successors, (34), 30 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) [2021-05-01 07:23:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-05-01 07:23:26,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-01 07:23:26,890 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:26,890 INFO L519 BasicCegarLoop]: trace histogram [25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:26,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-01 07:23:26,890 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:26,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:26,891 INFO L82 PathProgramCache]: Analyzing trace with hash 286056076, now seen corresponding path program 25 times [2021-05-01 07:23:26,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:26,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415334036] [2021-05-01 07:23:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:26,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:26,909 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_378 0)) InVars {main_~x~0=v_main_~x~0_378} OutVars{main_~x~0=v_main_~x~0_378} AuxVars[] AssignedVars[] [2021-05-01 07:23:26,910 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:23:26,911 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,914 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:23:26,915 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:23:26,916 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:23:26,918 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,921 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,923 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,925 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,928 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:23:26,931 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,933 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,935 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,937 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,939 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,942 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,944 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,944 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:23:26,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:23:26,965 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:26,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:26,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:26,980 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-05-01 07:23:26,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 07:23:26,989 INFO L142 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size [2021-05-01 07:23:26,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:23:27,011 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size [2021-05-01 07:23:27,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 07:23:27,034 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:23:27,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:23:27,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:27,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:27,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:27,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:27,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:27,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:23:27,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:23:27,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:23:27,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,113 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-05-01 07:23:27,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:23:27,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,142 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:23:27,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,180 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:23:27,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,225 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:23:27,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,275 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:23:27,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,332 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:23:27,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,398 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:23:27,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,475 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:23:27,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,552 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:23:27,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,637 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:23:27,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,730 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:23:27,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,828 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:23:27,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:27,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,934 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:27,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:27,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:23:28,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,049 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:28,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:28,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:23:28,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,179 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:28,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:28,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:23:28,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,314 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:28,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:28,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-05-01 07:23:28,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,464 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:28,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:28,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 07:23:28,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,620 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:28,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:28,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 07:23:28,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,793 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:28,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:28,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-05-01 07:23:28,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:28,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,971 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:28,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-05-01 07:23:29,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,169 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:29,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:29,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-05-01 07:23:29,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,393 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:29,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:29,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-05-01 07:23:29,772 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:23:29,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:29,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,784 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:29,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:29,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-05-01 07:23:30,129 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:23:30,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:30,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:30,140 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:30,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:30,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-05-01 07:23:30,521 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:23:30,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:30,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:30,532 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:23:30,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:30,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-05-01 07:23:30,939 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 07:23:30,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:30,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:30,943 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:30,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415334036] [2021-05-01 07:23:30,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [415334036] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:30,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:30,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-05-01 07:23:30,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847833482] [2021-05-01 07:23:30,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-01 07:23:30,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:30,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-01 07:23:30,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1092, Unknown=0, NotChecked=0, Total=1190 [2021-05-01 07:23:30,944 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 33 states, 32 states have (on average 1.09375) internal successors, (35), 31 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) [2021-05-01 07:23:36,476 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-05-01 07:23:36,937 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-05-01 07:23:37,390 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-05-01 07:23:37,953 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 79 [2021-05-01 07:23:38,490 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 83 [2021-05-01 07:23:38,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:38,777 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-05-01 07:23:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-01 07:23:38,779 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.09375) internal successors, (35), 31 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 [2021-05-01 07:23:38,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:38,780 INFO L225 Difference]: With dead ends: 47 [2021-05-01 07:23:38,780 INFO L226 Difference]: Without dead ends: 41 [2021-05-01 07:23:38,781 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 9109.4ms TimeCoverageRelationStatistics Valid=258, Invalid=3902, Unknown=0, NotChecked=0, Total=4160 [2021-05-01 07:23:38,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-05-01 07:23:38,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-05-01 07:23:38,815 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) [2021-05-01 07:23:38,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-05-01 07:23:38,816 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2021-05-01 07:23:38,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:38,817 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-05-01 07:23:38,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 32 states have (on average 1.09375) internal successors, (35), 31 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) [2021-05-01 07:23:38,817 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-05-01 07:23:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-01 07:23:38,817 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:38,818 INFO L519 BasicCegarLoop]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:38,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-01 07:23:38,818 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:38,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:38,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1802861746, now seen corresponding path program 26 times [2021-05-01 07:23:38,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:38,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935952662] [2021-05-01 07:23:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:38,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:38,830 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_406 0)) InVars {main_~x~0=v_main_~x~0_406} OutVars{main_~x~0=v_main_~x~0_406} AuxVars[] AssignedVars[] [2021-05-01 07:23:38,833 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:23:38,840 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,844 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,848 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,852 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,856 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,860 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,864 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,865 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,869 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:23:38,872 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:23:38,873 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:23:38,877 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,882 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,886 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,890 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,894 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:23:38,895 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:23:38,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:23:38,929 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:38,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:38,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:38,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:23:38,955 INFO L142 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size [2021-05-01 07:23:38,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-05-01 07:23:38,991 INFO L142 QuantifierPusher]: treesize reduction 36, result has 70.7 percent of original size [2021-05-01 07:23:38,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-05-01 07:23:39,070 INFO L142 QuantifierPusher]: treesize reduction 14, result has 84.6 percent of original size [2021-05-01 07:23:39,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:23:39,148 INFO L142 QuantifierPusher]: treesize reduction 37, result has 46.4 percent of original size [2021-05-01 07:23:39,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 07:23:39,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:39,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:39,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:39,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:39,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:23:39,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:23:39,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:39,296 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.3 percent of original size [2021-05-01 07:23:39,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,299 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:23:39,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,346 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:23:39,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,400 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:23:39,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-05-01 07:23:39,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,538 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 07:23:39,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,622 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 07:23:39,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,720 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-05-01 07:23:39,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,830 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 07:23:39,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:39,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,950 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:39,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:39,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-05-01 07:23:40,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:40,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:40,080 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:40,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:40,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-05-01 07:23:40,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:40,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:40,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:40,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:40,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 07:23:40,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:40,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:40,386 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:40,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:40,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-05-01 07:23:40,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:40,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:40,564 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:40,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:40,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-05-01 07:23:40,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:40,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:40,744 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:40,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:40,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-05-01 07:23:40,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:40,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:40,941 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:40,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:40,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-05-01 07:23:41,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:41,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:41,146 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:41,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:41,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-05-01 07:23:41,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:41,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:41,377 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:41,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:41,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-05-01 07:23:41,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:41,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:41,613 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:41,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:41,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-05-01 07:23:41,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:41,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:41,871 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:41,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:41,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-05-01 07:23:42,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:42,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:42,160 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:42,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:42,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-05-01 07:23:42,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:42,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:42,478 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:42,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:42,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 07:23:42,781 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-05-01 07:23:42,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:42,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:42,795 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:42,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:42,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-05-01 07:23:43,110 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-05-01 07:23:43,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:43,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:43,121 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:43,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:43,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-05-01 07:23:43,489 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-01 07:23:43,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:43,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:43,508 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:43,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:43,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-05-01 07:23:43,852 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:23:43,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:43,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:43,861 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:43,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:43,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-05-01 07:23:44,213 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:23:44,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:44,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:44,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:44,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:44,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-05-01 07:23:44,610 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:23:44,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:44,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:44,614 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:44,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935952662] [2021-05-01 07:23:44,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [935952662] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:44,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:44,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-05-01 07:23:44,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855253107] [2021-05-01 07:23:44,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-01 07:23:44,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:44,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-01 07:23:44,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1160, Unknown=0, NotChecked=0, Total=1260 [2021-05-01 07:23:44,616 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 32 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) [2021-05-01 07:23:48,711 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-05-01 07:23:49,351 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-05-01 07:23:49,672 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-01 07:23:50,022 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:23:50,367 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:23:50,720 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:23:51,094 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 07:23:51,464 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-05-01 07:23:51,832 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-05-01 07:23:52,220 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-05-01 07:23:52,628 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-05-01 07:23:53,037 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-05-01 07:23:53,626 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 78 [2021-05-01 07:23:54,143 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 83 [2021-05-01 07:23:54,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:54,430 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-05-01 07:23:54,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-01 07:23:54,432 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 32 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 [2021-05-01 07:23:54,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:54,432 INFO L225 Difference]: With dead ends: 48 [2021-05-01 07:23:54,432 INFO L226 Difference]: Without dead ends: 42 [2021-05-01 07:23:54,433 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 12105.0ms TimeCoverageRelationStatistics Valid=265, Invalid=4157, Unknown=0, NotChecked=0, Total=4422 [2021-05-01 07:23:54,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-05-01 07:23:54,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-05-01 07:23:54,456 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) [2021-05-01 07:23:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-05-01 07:23:54,456 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2021-05-01 07:23:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:54,456 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-05-01 07:23:54,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 32 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) [2021-05-01 07:23:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-05-01 07:23:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-01 07:23:54,457 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:54,457 INFO L519 BasicCegarLoop]: trace histogram [27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:54,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-01 07:23:54,457 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:54,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:54,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1579197260, now seen corresponding path program 27 times [2021-05-01 07:23:54,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:54,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875071021] [2021-05-01 07:23:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:54,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:54,466 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_435 0)) InVars {main_~x~0=v_main_~x~0_435} OutVars{main_~x~0=v_main_~x~0_435} AuxVars[] AssignedVars[] [2021-05-01 07:23:54,478 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:23:54,482 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,486 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,490 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,494 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,498 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,503 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,507 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,509 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,514 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:23:54,516 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:23:54,517 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:23:54,522 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,526 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,531 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,536 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,540 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:23:54,541 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:23:54,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:23:54,584 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:54,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:54,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:54,606 INFO L142 QuantifierPusher]: treesize reduction 13, result has 18.8 percent of original size [2021-05-01 07:23:54,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:54,613 INFO L142 QuantifierPusher]: treesize reduction 48, result has 27.3 percent of original size [2021-05-01 07:23:54,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-05-01 07:23:54,637 INFO L142 QuantifierPusher]: treesize reduction 33, result has 77.1 percent of original size [2021-05-01 07:23:54,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-05-01 07:23:54,722 INFO L142 QuantifierPusher]: treesize reduction 35, result has 70.6 percent of original size [2021-05-01 07:23:54,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-05-01 07:23:54,782 INFO L142 QuantifierPusher]: treesize reduction 54, result has 40.0 percent of original size [2021-05-01 07:23:54,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:23:54,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:54,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:54,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:54,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:54,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:54,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:23:54,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:54,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:54,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:23:54,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:23:54,945 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.3 percent of original size [2021-05-01 07:23:54,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:54,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:54,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:54,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:23:55,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:55,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:55,015 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:55,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:55,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:23:55,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:55,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:55,083 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:55,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:55,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:23:55,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:55,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:55,159 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:55,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:55,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-05-01 07:23:55,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:55,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:55,255 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:55,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:55,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 07:23:55,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:55,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:55,374 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:55,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:55,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 07:23:55,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:55,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:55,493 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:55,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-05-01 07:23:55,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:55,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:55,658 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:55,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:55,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 07:23:55,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:55,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:55,813 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:55,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:55,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-05-01 07:23:56,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:56,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:56,010 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:56,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:56,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-05-01 07:23:56,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:56,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:56,182 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:56,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:56,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 07:23:56,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:56,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:56,368 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:56,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:56,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-05-01 07:23:56,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:56,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:56,565 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:56,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:56,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-05-01 07:23:56,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:56,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:56,763 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:56,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:56,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-05-01 07:23:56,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:56,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:56,965 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:56,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:56,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-05-01 07:23:57,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:57,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:57,209 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:57,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:57,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-05-01 07:23:57,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:57,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:57,466 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:57,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:57,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-05-01 07:23:57,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:57,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:57,746 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:57,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:57,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-05-01 07:23:58,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:58,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:58,046 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:58,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:58,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-05-01 07:23:58,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:58,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:58,351 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:58,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:58,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-05-01 07:23:58,668 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-05-01 07:23:58,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:58,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:58,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:58,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:58,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 07:23:59,001 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-05-01 07:23:59,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:59,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:59,010 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:59,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:59,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-05-01 07:23:59,336 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-05-01 07:23:59,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:59,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:59,347 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:59,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:59,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-05-01 07:23:59,735 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-01 07:23:59,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:59,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:59,743 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:23:59,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:23:59,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-05-01 07:24:00,153 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:24:00,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:00,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:00,164 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:24:00,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:24:00,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-05-01 07:24:00,610 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:24:00,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:00,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:00,619 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:24:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:24:00,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-05-01 07:24:01,090 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:24:01,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:01,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:01,101 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.3 percent of original size [2021-05-01 07:24:01,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 07:24:01,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-05-01 07:24:01,584 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 07:24:01,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:01,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:01,587 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:24:01,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875071021] [2021-05-01 07:24:01,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1875071021] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:24:01,587 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:24:01,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-05-01 07:24:01,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551013349] [2021-05-01 07:24:01,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-01 07:24:01,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:24:01,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-01 07:24:01,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1271, Unknown=0, NotChecked=0, Total=1406 [2021-05-01 07:24:01,589 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 36 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 34 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) [2021-05-01 07:24:05,439 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-05-01 07:24:05,796 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-05-01 07:24:06,159 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-05-01 07:24:06,531 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-05-01 07:24:06,918 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-05-01 07:24:07,302 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-05-01 07:24:07,698 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-01 07:24:08,101 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:24:08,552 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:24:08,966 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:24:09,393 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 07:24:09,859 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-05-01 07:24:10,350 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-05-01 07:24:10,833 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-05-01 07:24:11,349 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-05-01 07:24:11,861 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-05-01 07:24:12,392 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-05-01 07:24:13,075 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 78 [2021-05-01 07:24:13,663 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 83 [2021-05-01 07:24:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:24:13,827 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2021-05-01 07:24:13,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-01 07:24:13,829 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 34 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 [2021-05-01 07:24:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:24:13,830 INFO L225 Difference]: With dead ends: 49 [2021-05-01 07:24:13,830 INFO L226 Difference]: Without dead ends: 43 [2021-05-01 07:24:13,830 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 15606.4ms TimeCoverageRelationStatistics Valid=369, Invalid=4601, Unknown=0, NotChecked=0, Total=4970 [2021-05-01 07:24:13,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-01 07:24:13,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-05-01 07:24:13,855 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) [2021-05-01 07:24:13,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-05-01 07:24:13,855 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2021-05-01 07:24:13,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:24:13,856 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-05-01 07:24:13,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 34 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) [2021-05-01 07:24:13,856 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-05-01 07:24:13,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-01 07:24:13,856 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:24:13,856 INFO L519 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:24:13,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-01 07:24:13,856 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:24:13,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:24:13,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1059434510, now seen corresponding path program 28 times [2021-05-01 07:24:13,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:24:13,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544133198] [2021-05-01 07:24:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:24:13,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:13,871 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_465 0)) InVars {main_~x~0=v_main_~x~0_465} OutVars{main_~x~0=v_main_~x~0_465} AuxVars[] AssignedVars[] [2021-05-01 07:24:13,874 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:24:13,875 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,880 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:24:13,884 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:24:13,885 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:24:13,891 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,896 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,901 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,907 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,914 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:24:13,920 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,937 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,942 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,948 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,953 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,959 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,964 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:13,965 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:24:14,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:24:14,026 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:24:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:24:14,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:14,053 INFO L142 QuantifierPusher]: treesize reduction 38, result has 36.7 percent of original size [2021-05-01 07:24:14,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 07:24:14,091 INFO L142 QuantifierPusher]: treesize reduction 45, result has 63.4 percent of original size [2021-05-01 07:24:14,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-05-01 07:24:14,203 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 17 [2021-05-01 07:24:14,206 INFO L142 QuantifierPusher]: treesize reduction 27, result has 68.2 percent of original size [2021-05-01 07:24:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:24:14,257 INFO L142 QuantifierPusher]: treesize reduction 28, result has 30.0 percent of original size [2021-05-01 07:24:14,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:24:14,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:14,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:14,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:14,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:24:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:24:14,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:24:14,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:14,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:24:14,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-05-01 07:24:14,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:14,460 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-05-01 07:24:14,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:14,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:24:14,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:14,540 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:14,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:14,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:24:14,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:14,630 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:14,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:14,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:24:14,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:14,749 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:14,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:14,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:24:14,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:14,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:14,878 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:14,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:14,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:24:15,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:15,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:15,031 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:15,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:15,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:24:15,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:15,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:15,219 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:15,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:15,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:24:15,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:15,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:15,433 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:15,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:15,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:24:15,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:15,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:15,646 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:15,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:15,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:24:15,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:15,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:15,897 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:15,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:15,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:24:16,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:16,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:16,148 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:16,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:16,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:24:16,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:16,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:16,394 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:16,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:16,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:24:16,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:16,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:16,669 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:16,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:16,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:24:16,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:16,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:16,963 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:16,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:16,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:24:17,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:17,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:17,290 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:17,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:17,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-05-01 07:24:17,619 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-01 07:24:17,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:17,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:17,628 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:17,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:17,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 07:24:17,997 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-05-01 07:24:18,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:18,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:18,008 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:18,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:18,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 07:24:18,371 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-05-01 07:24:18,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:18,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:18,386 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:18,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:18,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-05-01 07:24:18,814 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-05-01 07:24:18,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:18,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:18,825 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:18,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:18,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-05-01 07:24:19,274 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-05-01 07:24:19,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:19,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:19,285 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:19,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:19,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-05-01 07:24:19,697 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-05-01 07:24:19,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:19,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:19,707 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:19,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:19,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-05-01 07:24:20,122 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-05-01 07:24:20,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:20,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:20,132 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:20,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:20,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-05-01 07:24:20,588 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-05-01 07:24:20,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:20,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:20,598 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:20,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:20,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-05-01 07:24:21,019 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-05-01 07:24:21,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:21,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:21,029 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:21,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:21,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-05-01 07:24:21,518 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:24:21,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:21,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:21,533 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:21,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:21,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 07:24:22,054 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 07:24:22,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:22,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:22,075 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:22,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:22,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-05-01 07:24:22,373 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-05-01 07:24:22,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:22,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:22,382 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:22,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:22,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-05-01 07:24:22,697 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-01 07:24:22,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:22,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:22,706 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:22,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:22,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-05-01 07:24:23,033 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-05-01 07:24:23,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:23,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:23,035 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:24:23,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544133198] [2021-05-01 07:24:23,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [544133198] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:24:23,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:24:23,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-05-01 07:24:23,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719793167] [2021-05-01 07:24:23,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-01 07:24:23,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:24:23,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-01 07:24:23,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2021-05-01 07:24:23,037 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 36 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 34 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) [2021-05-01 07:24:27,812 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:24:28,103 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 07:24:28,396 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-05-01 07:24:28,684 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-01 07:24:28,992 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-05-01 07:24:29,306 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-05-01 07:24:29,658 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-05-01 07:24:30,024 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-05-01 07:24:30,359 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-05-01 07:24:30,729 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-05-01 07:24:31,111 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-05-01 07:24:31,648 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 78 [2021-05-01 07:24:32,122 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 83 [2021-05-01 07:24:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:24:32,351 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-05-01 07:24:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-01 07:24:32,352 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 34 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 [2021-05-01 07:24:32,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:24:32,353 INFO L225 Difference]: With dead ends: 50 [2021-05-01 07:24:32,353 INFO L226 Difference]: Without dead ends: 44 [2021-05-01 07:24:32,353 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 15357.2ms TimeCoverageRelationStatistics Valid=282, Invalid=4688, Unknown=0, NotChecked=0, Total=4970 [2021-05-01 07:24:32,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-05-01 07:24:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-05-01 07:24:32,377 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) [2021-05-01 07:24:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2021-05-01 07:24:32,377 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2021-05-01 07:24:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:24:32,377 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2021-05-01 07:24:32,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 34 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) [2021-05-01 07:24:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2021-05-01 07:24:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-01 07:24:32,378 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:24:32,378 INFO L519 BasicCegarLoop]: trace histogram [29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:24:32,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-01 07:24:32,378 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:24:32,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:24:32,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1252640756, now seen corresponding path program 29 times [2021-05-01 07:24:32,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:24:32,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021376038] [2021-05-01 07:24:32,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:24:32,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:32,397 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_496 0)) InVars {main_~x~0=v_main_~x~0_496} OutVars{main_~x~0=v_main_~x~0_496} AuxVars[] AssignedVars[] [2021-05-01 07:24:32,399 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:24:32,400 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,404 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:24:32,406 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:24:32,407 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:24:32,411 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:24:32,415 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,419 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,424 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,428 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,431 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,435 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,439 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,442 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,445 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,448 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,451 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,452 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:24:32,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:24:32,480 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:24:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:24:32,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:32,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:32,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:24:32,516 INFO L142 QuantifierPusher]: treesize reduction 16, result has 50.0 percent of original size [2021-05-01 07:24:32,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 07:24:32,534 INFO L142 QuantifierPusher]: treesize reduction 56, result has 54.5 percent of original size [2021-05-01 07:24:32,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:24:32,624 INFO L142 QuantifierPusher]: treesize reduction 61, result has 39.0 percent of original size [2021-05-01 07:24:32,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-05-01 07:24:32,659 INFO L142 QuantifierPusher]: treesize reduction 38, result has 42.4 percent of original size [2021-05-01 07:24:32,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-05-01 07:24:32,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:32,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:32,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:32,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:24:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:24:32,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:24:32,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:24:32,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:24:32,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,781 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.7 percent of original size [2021-05-01 07:24:32,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:32,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:24:32,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,822 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:32,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:32,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:24:32,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,887 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:32,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:32,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:24:32,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:32,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,953 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:32,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:32,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:24:33,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:33,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,041 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:33,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:33,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:24:33,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:33,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,132 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:33,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:33,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:24:33,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:33,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,233 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:33,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:33,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:24:33,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:33,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,330 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:33,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:33,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:24:33,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:33,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,449 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:33,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:33,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:24:33,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:33,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,583 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:33,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:33,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:24:33,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:33,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,739 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:33,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:33,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:24:33,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:33,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,901 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:33,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:33,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:24:34,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:34,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:34,065 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:34,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:34,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:24:34,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:34,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:34,245 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:34,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:34,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:24:34,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:34,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:34,430 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:34,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:34,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:24:34,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:34,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:34,649 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:34,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:34,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-05-01 07:24:34,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:34,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:34,867 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:34,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:34,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 07:24:35,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:35,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:35,097 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:35,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:35,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 07:24:35,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:35,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:35,358 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:35,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:35,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-05-01 07:24:35,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:35,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:35,617 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:35,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:35,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-05-01 07:24:35,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:35,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:35,892 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:35,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:35,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-05-01 07:24:36,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:36,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:36,194 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:36,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:36,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-05-01 07:24:36,534 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:24:36,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:36,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:36,542 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:36,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:36,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-05-01 07:24:36,844 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:24:36,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:36,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:36,853 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:36,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:36,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-05-01 07:24:37,172 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:24:37,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:37,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:37,181 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:37,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:37,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-05-01 07:24:37,497 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 07:24:37,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:37,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:37,506 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:37,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:37,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 07:24:37,875 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-05-01 07:24:37,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:37,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:37,885 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:37,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:37,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-05-01 07:24:38,274 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-05-01 07:24:38,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:38,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:38,283 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:38,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:38,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-05-01 07:24:38,689 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-05-01 07:24:38,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:38,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:38,699 INFO L142 QuantifierPusher]: treesize reduction 6, result has 92.3 percent of original size [2021-05-01 07:24:38,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-05-01 07:24:38,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-05-01 07:24:39,116 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-05-01 07:24:39,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:39,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:39,118 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:24:39,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021376038] [2021-05-01 07:24:39,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1021376038] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:24:39,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:24:39,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-05-01 07:24:39,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167060989] [2021-05-01 07:24:39,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-01 07:24:39,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:24:39,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-01 07:24:39,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1418, Unknown=0, NotChecked=0, Total=1560 [2021-05-01 07:24:39,119 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand has 38 states, 37 states have (on average 1.054054054054054) internal successors, (39), 36 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) [2021-05-01 07:24:43,153 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-05-01 07:24:43,827 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-05-01 07:24:44,178 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-01 07:24:44,500 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:24:44,878 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:24:45,263 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:24:45,569 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 07:24:45,905 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-05-01 07:24:46,244 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-05-01 07:24:46,624 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-05-01 07:24:47,031 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-05-01 07:24:47,414 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-05-01 07:24:47,806 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-05-01 07:24:48,262 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-05-01 07:24:48,785 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-05-01 07:24:49,271 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2021-05-01 07:24:49,796 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-05-01 07:24:50,398 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 78 [2021-05-01 07:24:50,955 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 83 [2021-05-01 07:24:51,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:24:51,154 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-05-01 07:24:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-01 07:24:51,156 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 1.054054054054054) internal successors, (39), 36 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 [2021-05-01 07:24:51,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:24:51,156 INFO L225 Difference]: With dead ends: 51 [2021-05-01 07:24:51,156 INFO L226 Difference]: Without dead ends: 45 [2021-05-01 07:24:51,157 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 15414.4ms TimeCoverageRelationStatistics Valid=390, Invalid=5160, Unknown=0, NotChecked=0, Total=5550 [2021-05-01 07:24:51,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-05-01 07:24:51,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-05-01 07:24:51,182 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) [2021-05-01 07:24:51,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2021-05-01 07:24:51,182 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2021-05-01 07:24:51,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:24:51,182 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2021-05-01 07:24:51,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 37 states have (on average 1.054054054054054) internal successors, (39), 36 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) [2021-05-01 07:24:51,183 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2021-05-01 07:24:51,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-01 07:24:51,183 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:24:51,183 INFO L519 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:24:51,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-01 07:24:51,183 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:24:51,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:24:51,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1347900210, now seen corresponding path program 30 times [2021-05-01 07:24:51,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:24:51,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469680380] [2021-05-01 07:24:51,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:24:51,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:51,197 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_528 0)) InVars {main_~x~0=v_main_~x~0_528} OutVars{main_~x~0=v_main_~x~0_528} AuxVars[] AssignedVars[] [2021-05-01 07:24:51,199 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:24:51,200 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,204 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:24:51,206 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:24:51,207 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:24:51,212 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:24:51,216 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,220 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,225 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,230 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,233 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,237 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,241 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,244 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,247 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,250 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,254 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,255 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:24:51,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:24:51,294 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:24:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:24:51,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:51,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:51,315 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-05-01 07:24:51,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:24:51,326 INFO L142 QuantifierPusher]: treesize reduction 29, result has 50.8 percent of original size [2021-05-01 07:24:51,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 07:24:51,371 INFO L142 QuantifierPusher]: treesize reduction 27, result has 71.3 percent of original size [2021-05-01 07:24:51,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:24:51,446 INFO L142 QuantifierPusher]: treesize reduction 21, result has 73.8 percent of original size [2021-05-01 07:24:51,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:24:51,500 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-05-01 07:24:51,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:24:51,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:51,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:51,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:51,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:24:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:24:51,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:51,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:24:51,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:51,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:24:51,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:24:51,667 INFO L142 QuantifierPusher]: treesize reduction 17, result has 80.9 percent of original size [2021-05-01 07:24:51,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:51,673 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:24:51,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:24:51,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:24:51,740 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-05-01 07:24:51,741 INFO L147 QuantifierPusher]: treesize reduction 4, result has 86.7 percent of original size 26 [2021-05-01 07:24:51,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 07:24:51,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,826 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-05-01 07:24:51,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,875 INFO L147 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size 38 [2021-05-01 07:24:51,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:51,934 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.7 percent of original size 44 [2021-05-01 07:24:52,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,002 INFO L147 QuantifierPusher]: treesize reduction 6, result has 88.5 percent of original size 46 [2021-05-01 07:24:52,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,080 INFO L147 QuantifierPusher]: treesize reduction 2, result has 96.3 percent of original size 52 [2021-05-01 07:24:52,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,167 INFO L147 QuantifierPusher]: treesize reduction 2, result has 96.7 percent of original size 58 [2021-05-01 07:24:52,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:24:52,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,378 INFO L147 QuantifierPusher]: treesize reduction 10, result has 86.1 percent of original size 62 [2021-05-01 07:24:52,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,507 INFO L147 QuantifierPusher]: treesize reduction 2, result has 97.1 percent of original size 68 [2021-05-01 07:24:52,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,622 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.7 percent of original size 70 [2021-05-01 07:24:52,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,751 INFO L147 QuantifierPusher]: treesize reduction 6, result has 92.5 percent of original size 74 [2021-05-01 07:24:52,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:52,894 INFO L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 78 [2021-05-01 07:24:53,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:53,025 INFO L147 QuantifierPusher]: treesize reduction 6, result has 93.2 percent of original size 82 [2021-05-01 07:24:53,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:53,156 INFO L147 QuantifierPusher]: treesize reduction 2, result has 97.8 percent of original size 88 [2021-05-01 07:24:53,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:53,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 07:24:53,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:53,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-05-01 07:24:53,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:53,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 07:24:53,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:53,836 INFO L147 QuantifierPusher]: treesize reduction 2, result has 98.2 percent of original size 112 [2021-05-01 07:24:54,017 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-05-01 07:24:54,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:54,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-05-01 07:24:54,221 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-05-01 07:24:54,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:54,225 INFO L147 QuantifierPusher]: treesize reduction 2, result has 98.4 percent of original size 124 [2021-05-01 07:24:54,434 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-05-01 07:24:54,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:54,438 INFO L147 QuantifierPusher]: treesize reduction 20, result has 85.1 percent of original size 114 [2021-05-01 07:24:54,673 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-05-01 07:24:54,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:54,677 INFO L147 QuantifierPusher]: treesize reduction 2, result has 98.4 percent of original size 120 [2021-05-01 07:24:54,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:54,871 INFO L147 QuantifierPusher]: treesize reduction 2, result has 98.4 percent of original size 126 [2021-05-01 07:24:55,118 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:24:55,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:55,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-05-01 07:24:55,385 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-05-01 07:24:55,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:55,389 INFO L147 QuantifierPusher]: treesize reduction 2, result has 98.6 percent of original size 138 [2021-05-01 07:24:55,641 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-05-01 07:24:55,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:55,646 INFO L147 QuantifierPusher]: treesize reduction 12, result has 91.8 percent of original size 134 [2021-05-01 07:24:55,932 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-01 07:24:55,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:55,936 INFO L147 QuantifierPusher]: treesize reduction 2, result has 98.6 percent of original size 140 [2021-05-01 07:24:56,235 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:24:56,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:56,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:56,241 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:24:56,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469680380] [2021-05-01 07:24:56,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1469680380] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:24:56,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:24:56,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-05-01 07:24:56,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672169568] [2021-05-01 07:24:56,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-01 07:24:56,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:24:56,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-01 07:24:56,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2021-05-01 07:24:56,242 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 39 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 37 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) [2021-05-01 07:24:58,437 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-05-01 07:24:58,686 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-05-01 07:24:58,920 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-05-01 07:24:59,154 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-05-01 07:24:59,564 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-05-01 07:24:59,788 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-05-01 07:25:00,017 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-05-01 07:25:00,249 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:25:00,499 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-05-01 07:25:00,779 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-05-01 07:25:01,041 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-01 07:25:01,426 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:25:01,808 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-05-01 07:25:02,150 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-05-01 07:25:02,537 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-05-01 07:25:02,903 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-05-01 07:25:03,250 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-05-01 07:25:03,613 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-01 07:25:04,001 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-05-01 07:25:04,429 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:25:04,869 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 59 [2021-05-01 07:25:05,218 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 64 [2021-05-01 07:25:05,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:25:05,333 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-05-01 07:25:05,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-01 07:25:05,334 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 37 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 [2021-05-01 07:25:05,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:25:05,336 INFO L225 Difference]: With dead ends: 52 [2021-05-01 07:25:05,336 INFO L226 Difference]: Without dead ends: 46 [2021-05-01 07:25:05,336 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 11482.5ms TimeCoverageRelationStatistics Valid=342, Invalid=5510, Unknown=0, NotChecked=0, Total=5852 [2021-05-01 07:25:05,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-05-01 07:25:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-05-01 07:25:05,362 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) [2021-05-01 07:25:05,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-05-01 07:25:05,363 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2021-05-01 07:25:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:25:05,363 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-05-01 07:25:05,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 37 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) [2021-05-01 07:25:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-05-01 07:25:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-01 07:25:05,363 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:25:05,363 INFO L519 BasicCegarLoop]: trace histogram [31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:25:05,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-01 07:25:05,363 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:25:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:25:05,364 INFO L82 PathProgramCache]: Analyzing trace with hash 360291532, now seen corresponding path program 31 times [2021-05-01 07:25:05,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:25:05,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407852624] [2021-05-01 07:25:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:25:05,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:05,371 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_561 0)) InVars {main_~x~0=v_main_~x~0_561} OutVars{main_~x~0=v_main_~x~0_561} AuxVars[] AssignedVars[] [2021-05-01 07:25:05,375 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:25:05,376 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,380 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:25:05,383 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:25:05,383 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:25:05,389 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,393 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,398 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,401 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,407 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:25:05,411 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,415 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,419 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,422 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,426 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,429 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,433 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,434 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:25:05,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:25:05,476 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:25:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:25:05,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:05,490 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-05-01 07:25:05,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:25:05,531 INFO L142 QuantifierPusher]: treesize reduction 27, result has 79.4 percent of original size [2021-05-01 07:25:05,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:25:05,641 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.8 percent of original size [2021-05-01 07:25:05,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:25:05,757 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-05-01 07:25:05,759 INFO L142 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-05-01 07:25:05,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:25:05,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:05,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:05,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:05,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:25:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:25:05,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:25:05,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:05,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:25:05,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:25:05,903 INFO L142 QuantifierPusher]: treesize reduction 23, result has 74.7 percent of original size [2021-05-01 07:25:05,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:05,905 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:05,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:05,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:25:05,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:05,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:05,957 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:05,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:05,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:25:06,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,020 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:25:06,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,087 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:25:06,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,159 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:25:06,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,239 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:25:06,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,329 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:25:06,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,423 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:25:06,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,529 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 07:25:06,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,650 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 07:25:06,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,778 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:25:06,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:06,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:06,912 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:06,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:06,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 07:25:07,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:07,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:07,044 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:07,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:07,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-05-01 07:25:07,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:07,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:07,201 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:07,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:07,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:25:07,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:07,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:07,365 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:07,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:07,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 07:25:07,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:07,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:07,542 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:07,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:07,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 07:25:07,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:07,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:07,732 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:07,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:07,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 07:25:07,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:07,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:07,936 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:07,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:07,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 07:25:08,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:08,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:08,153 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:08,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 07:25:08,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:08,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:08,386 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:08,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:08,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-05-01 07:25:08,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:08,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:08,633 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:08,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:08,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-05-01 07:25:08,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:08,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:08,870 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:08,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:08,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-05-01 07:25:09,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:09,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:09,116 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:09,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:09,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-05-01 07:25:09,414 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-05-01 07:25:09,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:09,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:09,421 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:09,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:09,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-05-01 07:25:09,716 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-05-01 07:25:09,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:09,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:09,724 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:09,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:09,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 07:25:10,026 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-05-01 07:25:10,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:10,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:10,037 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:10,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:10,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-05-01 07:25:10,387 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-05-01 07:25:10,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:10,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:10,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:10,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:10,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-05-01 07:25:10,732 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:25:10,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:10,740 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:10,741 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:10,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:10,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-05-01 07:25:11,073 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 07:25:11,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:11,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:11,088 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:11,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:11,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-05-01 07:25:11,450 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-05-01 07:25:11,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:11,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:11,460 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:11,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:11,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-05-01 07:25:11,892 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-01 07:25:11,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:11,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:11,900 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:25:11,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:25:11,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-05-01 07:25:12,370 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-05-01 07:25:12,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:12,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:12,373 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:25:12,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407852624] [2021-05-01 07:25:12,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1407852624] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:25:12,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:25:12,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-05-01 07:25:12,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977151421] [2021-05-01 07:25:12,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-01 07:25:12,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:25:12,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-01 07:25:12,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-05-01 07:25:12,374 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 39 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 37 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) [2021-05-01 07:25:15,977 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-05-01 07:25:16,323 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-01 07:25:16,732 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-05-01 07:25:17,157 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-05-01 07:25:17,546 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-05-01 07:25:17,950 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-05-01 07:25:18,373 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-05-01 07:25:18,809 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-05-01 07:25:19,258 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-05-01 07:25:19,658 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-05-01 07:25:20,082 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:25:20,513 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 07:25:20,951 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-05-01 07:25:21,415 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-01 07:25:21,894 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-05-01 07:25:22,375 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-05-01 07:25:22,882 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-05-01 07:25:23,328 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-05-01 07:25:23,757 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-05-01 07:25:24,211 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-05-01 07:25:24,693 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-05-01 07:25:25,430 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 77 [2021-05-01 07:25:26,186 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 82 [2021-05-01 07:25:26,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:25:26,482 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-05-01 07:25:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-01 07:25:26,484 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 37 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 [2021-05-01 07:25:26,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:25:26,485 INFO L225 Difference]: With dead ends: 53 [2021-05-01 07:25:26,485 INFO L226 Difference]: Without dead ends: 47 [2021-05-01 07:25:26,486 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 16807.9ms TimeCoverageRelationStatistics Valid=305, Invalid=5547, Unknown=0, NotChecked=0, Total=5852 [2021-05-01 07:25:26,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-01 07:25:26,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-05-01 07:25:26,513 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) [2021-05-01 07:25:26,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-05-01 07:25:26,513 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2021-05-01 07:25:26,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:25:26,513 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-05-01 07:25:26,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 37 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) [2021-05-01 07:25:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-05-01 07:25:26,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-05-01 07:25:26,514 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:25:26,514 INFO L519 BasicCegarLoop]: trace histogram [32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:25:26,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-01 07:25:26,514 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:25:26,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:25:26,514 INFO L82 PathProgramCache]: Analyzing trace with hash -190806414, now seen corresponding path program 32 times [2021-05-01 07:25:26,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:25:26,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844869317] [2021-05-01 07:25:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:25:26,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:26,523 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_595 0)) InVars {main_~x~0=v_main_~x~0_595} OutVars{main_~x~0=v_main_~x~0_595} AuxVars[] AssignedVars[] [2021-05-01 07:25:26,530 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:25:26,531 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,535 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:25:26,538 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:25:26,539 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:25:26,544 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:25:26,550 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,554 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,559 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,564 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,568 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,571 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,575 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,578 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,582 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,586 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,589 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,590 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:25:26,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:25:26,635 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:25:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:25:26,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:26,650 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-05-01 07:25:26,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 07:25:26,672 INFO L142 QuantifierPusher]: treesize reduction 12, result has 77.8 percent of original size [2021-05-01 07:25:26,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-01 07:25:26,730 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size [2021-05-01 07:25:26,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-05-01 07:25:26,782 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:25:26,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:25:26,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:26,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:26,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:26,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:25:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:25:26,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:26,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:25:26,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:26,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:25:26,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:25:26,947 INFO L142 QuantifierPusher]: treesize reduction 23, result has 74.7 percent of original size [2021-05-01 07:25:26,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:26,949 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:26,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:26,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:25:26,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:26,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:26,997 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:26,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:26,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:25:27,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,054 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:25:27,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,115 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:25:27,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,193 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:25:27,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,282 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:25:27,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,390 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:25:27,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,504 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:25:27,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,624 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 07:25:27,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,754 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 07:25:27,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:27,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:27,893 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:27,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:27,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:25:28,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:28,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:28,041 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:28,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:28,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 07:25:28,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:28,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:28,214 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:28,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:28,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-05-01 07:25:28,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:28,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:28,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:28,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:28,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:25:28,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:28,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:28,585 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:28,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:28,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 07:25:28,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:28,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:28,795 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:28,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 07:25:29,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:29,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:29,018 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:29,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:29,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 07:25:29,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:29,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:29,258 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:29,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:29,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 07:25:29,502 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-01 07:25:29,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:29,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:29,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:29,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:29,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 07:25:29,779 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-05-01 07:25:29,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:29,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:29,785 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:29,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:29,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-05-01 07:25:30,065 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-05-01 07:25:30,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:30,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:30,073 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:30,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:30,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-05-01 07:25:30,362 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-05-01 07:25:30,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:30,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:30,370 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:30,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:30,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-05-01 07:25:30,676 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-05-01 07:25:30,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:30,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:30,682 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:30,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:30,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-05-01 07:25:31,055 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-05-01 07:25:31,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:31,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:31,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:31,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:31,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-05-01 07:25:31,430 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-05-01 07:25:31,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:31,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:31,437 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:31,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:31,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 07:25:31,851 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-05-01 07:25:31,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:31,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:31,861 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:31,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:31,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-05-01 07:25:32,342 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-05-01 07:25:32,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:32,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:32,351 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:32,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:32,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-05-01 07:25:32,917 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:25:32,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:32,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:32,925 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:32,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:32,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-05-01 07:25:33,491 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 07:25:33,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:33,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:33,501 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:33,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:33,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-05-01 07:25:34,077 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-05-01 07:25:34,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:34,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:34,085 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:34,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:34,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-05-01 07:25:34,595 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-01 07:25:34,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:34,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:34,605 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:34,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:34,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-05-01 07:25:35,115 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-05-01 07:25:35,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:35,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:35,131 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:35,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:35,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-05-01 07:25:35,691 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-05-01 07:25:35,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:35,694 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:25:35,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844869317] [2021-05-01 07:25:35,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [844869317] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:25:35,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:25:35,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-05-01 07:25:35,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006282399] [2021-05-01 07:25:35,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-01 07:25:35,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:25:35,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-01 07:25:35,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2021-05-01 07:25:35,696 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 40 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 38 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) [2021-05-01 07:25:39,582 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-05-01 07:25:39,958 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-05-01 07:25:40,355 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-05-01 07:25:40,728 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-01 07:25:41,128 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-05-01 07:25:41,592 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-05-01 07:25:42,027 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-05-01 07:25:42,469 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-05-01 07:25:42,920 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-05-01 07:25:43,373 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-05-01 07:25:43,825 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-05-01 07:25:44,292 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-05-01 07:25:44,804 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:25:45,275 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 07:25:45,826 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-05-01 07:25:46,344 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-01 07:25:46,868 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-05-01 07:25:47,359 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-05-01 07:25:47,925 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-05-01 07:25:48,508 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-05-01 07:25:49,038 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-05-01 07:25:49,676 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-05-01 07:25:50,295 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-05-01 07:25:50,973 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-05-01 07:25:51,847 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 77 [2021-05-01 07:25:52,608 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 81 [2021-05-01 07:25:53,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:25:53,051 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2021-05-01 07:25:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-01 07:25:53,055 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 38 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 [2021-05-01 07:25:53,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:25:53,055 INFO L225 Difference]: With dead ends: 54 [2021-05-01 07:25:53,055 INFO L226 Difference]: Without dead ends: 48 [2021-05-01 07:25:53,056 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 21363.2ms TimeCoverageRelationStatistics Valid=314, Invalid=5848, Unknown=0, NotChecked=0, Total=6162 [2021-05-01 07:25:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-05-01 07:25:53,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-05-01 07:25:53,086 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) [2021-05-01 07:25:53,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-05-01 07:25:53,086 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2021-05-01 07:25:53,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:25:53,086 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-05-01 07:25:53,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 38 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) [2021-05-01 07:25:53,086 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-05-01 07:25:53,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-01 07:25:53,086 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:25:53,087 INFO L519 BasicCegarLoop]: trace histogram [33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:25:53,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-01 07:25:53,087 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:25:53,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:25:53,087 INFO L82 PathProgramCache]: Analyzing trace with hash -94973556, now seen corresponding path program 33 times [2021-05-01 07:25:53,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:25:53,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067079034] [2021-05-01 07:25:53,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:25:53,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:53,105 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_630 0)) InVars {main_~x~0=v_main_~x~0_630} OutVars{main_~x~0=v_main_~x~0_630} AuxVars[] AssignedVars[] [2021-05-01 07:25:53,107 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:25:53,109 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,114 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:25:53,118 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:25:53,120 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:25:53,127 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,133 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,139 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,145 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,151 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:25:53,157 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,163 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,169 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,173 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,178 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,183 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,188 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,190 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:25:53,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:25:53,256 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:25:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:25:53,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:53,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:53,274 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:25:53,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:53,277 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-05-01 07:25:53,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:25:53,356 INFO L142 QuantifierPusher]: treesize reduction 22, result has 74.4 percent of original size [2021-05-01 07:25:53,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:25:53,564 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2021-05-01 07:25:53,567 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-05-01 07:25:53,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:25:53,777 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2021-05-01 07:25:53,781 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-05-01 07:25:53,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:25:53,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:53,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:25:53,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:53,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:25:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:25:53,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:25:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:25:53,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:53,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:53,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:25:53,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:25:53,980 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:25:53,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:53,982 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:53,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:53,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:25:54,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,034 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:25:54,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,089 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:25:54,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,156 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:25:54,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,230 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:25:54,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,321 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:25:54,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,428 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:25:54,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,551 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:25:54,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:25:54,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:54,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:54,873 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:54,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:54,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:25:55,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:55,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:55,068 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:55,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:55,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:25:55,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:55,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:55,281 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:55,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:55,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:25:55,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:55,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:55,505 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:55,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:55,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:25:55,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:55,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:55,748 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:55,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:55,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:25:56,010 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-05-01 07:25:56,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:56,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:56,018 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:56,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:56,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:25:56,317 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-05-01 07:25:56,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:56,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:56,325 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:56,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:56,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:25:56,652 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:25:56,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:56,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:56,661 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:56,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:56,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:25:56,991 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-05-01 07:25:56,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:56,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:56,999 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:57,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:57,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:25:57,329 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-01 07:25:57,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:57,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:57,337 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:57,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:57,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:25:57,690 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:25:57,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:57,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:57,699 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:57,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:57,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-05-01 07:25:58,070 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-05-01 07:25:58,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:58,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:58,079 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:58,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:58,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 07:25:58,495 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-05-01 07:25:58,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:58,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:58,504 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:58,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:58,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 07:25:58,934 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-05-01 07:25:58,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:58,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:58,943 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:58,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:58,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-05-01 07:25:59,339 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-05-01 07:25:59,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:59,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:59,348 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:59,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:59,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-05-01 07:25:59,837 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-05-01 07:25:59,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:25:59,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:25:59,846 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:25:59,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:25:59,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-05-01 07:26:00,340 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:26:00,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:00,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:00,351 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:26:00,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:26:00,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-05-01 07:26:00,913 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:26:00,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:00,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:00,924 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:26:00,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:26:00,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-05-01 07:26:01,428 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:26:01,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:01,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:01,438 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:26:01,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:26:01,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-05-01 07:26:01,937 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 07:26:01,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:01,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:01,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:26:01,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:26:01,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-05-01 07:26:02,566 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 07:26:02,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:02,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:02,576 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:26:02,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:26:02,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 07:26:03,195 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-05-01 07:26:03,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:03,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:03,207 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:26:03,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:26:03,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-05-01 07:26:03,833 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-05-01 07:26:03,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:03,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:03,844 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:26:03,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:26:03,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-05-01 07:26:04,598 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-05-01 07:26:04,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:04,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:04,610 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:26:04,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:26:04,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-05-01 07:26:05,331 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-05-01 07:26:05,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:05,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:26:05,335 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:26:05,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067079034] [2021-05-01 07:26:05,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2067079034] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:26:05,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:26:05,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-05-01 07:26:05,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536101204] [2021-05-01 07:26:05,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-01 07:26:05,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:26:05,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-01 07:26:05,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1719, Unknown=0, NotChecked=0, Total=1806 [2021-05-01 07:26:05,336 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 41 states, 40 states have (on average 1.075) internal successors, (43), 39 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) [2021-05-01 07:26:07,694 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-05-01 07:26:08,191 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-05-01 07:26:08,628 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-05-01 07:26:09,416 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-05-01 07:26:09,821 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-05-01 07:26:10,245 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:26:10,717 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-05-01 07:26:11,208 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-01 07:26:11,681 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:26:12,193 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-05-01 07:26:12,709 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-05-01 07:26:13,172 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-05-01 07:26:13,667 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-05-01 07:26:14,150 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-05-01 07:26:14,740 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:26:15,314 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:26:15,882 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:26:16,414 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 07:26:17,013 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 07:26:17,624 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-05-01 07:26:18,200 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-05-01 07:26:18,852 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-05-01 07:26:19,538 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-05-01 07:26:20,224 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-05-01 07:26:21,011 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-05-01 07:26:21,747 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-05-01 07:26:22,480 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-05-01 07:26:23,373 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-05-01 07:26:24,174 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-05-01 07:26:25,252 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 73 [2021-05-01 07:26:26,193 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 78 [2021-05-01 07:26:26,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:26:26,933 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2021-05-01 07:26:26,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-01 07:26:26,937 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.075) internal successors, (43), 39 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 [2021-05-01 07:26:26,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:26:26,937 INFO L225 Difference]: With dead ends: 55 [2021-05-01 07:26:26,937 INFO L226 Difference]: Without dead ends: 49 [2021-05-01 07:26:26,938 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 27402.2ms TimeCoverageRelationStatistics Valid=254, Invalid=6226, Unknown=0, NotChecked=0, Total=6480 [2021-05-01 07:26:26,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-01 07:26:26,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-05-01 07:26:26,968 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) [2021-05-01 07:26:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-05-01 07:26:26,969 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2021-05-01 07:26:26,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:26:26,969 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-05-01 07:26:26,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 40 states have (on average 1.075) internal successors, (43), 39 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) [2021-05-01 07:26:26,969 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-05-01 07:26:26,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-01 07:26:26,969 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:26:26,969 INFO L519 BasicCegarLoop]: trace histogram [34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:26:26,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-01 07:26:26,970 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:26:26,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:26:26,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1419122254, now seen corresponding path program 34 times [2021-05-01 07:26:26,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:26:26,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237094138] [2021-05-01 07:26:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:26:26,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:26,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:26:26,990 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_666 0)) InVars {main_~x~0=v_main_~x~0_666} OutVars{main_~x~0=v_main_~x~0_666} AuxVars[] AssignedVars[] [2021-05-01 07:26:26,993 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:26:26,999 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,004 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,010 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,015 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,021 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,027 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,033 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,035 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,041 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:26:27,047 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:26:27,048 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:26:27,058 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:26:27,067 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,074 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,082 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,089 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,091 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:26:27,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:26:27,169 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:26:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:26:27,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:26:27,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:26:27,188 INFO L142 QuantifierPusher]: treesize reduction 10, result has 41.2 percent of original size [2021-05-01 07:26:27,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:26:27,210 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-05-01 07:26:27,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:26:27,447 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2021-05-01 07:26:27,451 INFO L142 QuantifierPusher]: treesize reduction 32, result has 68.0 percent of original size [2021-05-01 07:26:27,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:26:27,658 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 19 [2021-05-01 07:26:27,661 INFO L142 QuantifierPusher]: treesize reduction 27, result has 69.0 percent of original size [2021-05-01 07:26:27,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:26:27,794 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 14 [2021-05-01 07:26:27,797 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:26:27,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:26:27,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:26:27,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:26:27,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:26:27,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:26:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:26:27,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:26:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:26:27,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:27,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:27,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:26:27,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:26:28,091 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.0 percent of original size [2021-05-01 07:26:28,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:28,093 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:28,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:28,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:26:28,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:28,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:28,202 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:28,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:28,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-05-01 07:26:28,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:28,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:28,321 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:28,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:28,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-05-01 07:26:28,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:28,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:28,467 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:28,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:28,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-05-01 07:26:28,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:28,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:28,612 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:28,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:28,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 07:26:28,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:28,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:28,770 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:28,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 07:26:28,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:28,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:28,937 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:28,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:28,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-05-01 07:26:29,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:29,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:29,120 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:29,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 07:26:29,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:29,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:29,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:29,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:29,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-05-01 07:26:29,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:29,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:29,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:29,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:29,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-05-01 07:26:29,768 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-05-01 07:26:29,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:29,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:29,775 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:29,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:29,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-05-01 07:26:30,081 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-05-01 07:26:30,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:30,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:30,089 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:30,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:30,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-05-01 07:26:30,405 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-05-01 07:26:30,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:30,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:30,414 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:30,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:30,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-05-01 07:26:30,762 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-05-01 07:26:30,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:30,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:30,770 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:30,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:30,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-05-01 07:26:31,131 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-05-01 07:26:31,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:31,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:31,140 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:31,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:31,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-05-01 07:26:31,521 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-05-01 07:26:31,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:31,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:31,531 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:31,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:31,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-05-01 07:26:31,938 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-05-01 07:26:31,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:31,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:31,947 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:31,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:31,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 07:26:32,364 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-05-01 07:26:32,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:32,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:32,373 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:32,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:32,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-05-01 07:26:32,828 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-05-01 07:26:32,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:32,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:32,838 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:32,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:32,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-05-01 07:26:33,327 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-05-01 07:26:33,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:33,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:33,337 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:33,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:33,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-05-01 07:26:33,822 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-05-01 07:26:33,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:33,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:33,832 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:33,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:33,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-05-01 07:26:34,435 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-05-01 07:26:34,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:34,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:34,446 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:34,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:34,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-05-01 07:26:34,980 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-05-01 07:26:34,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:34,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:34,991 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:34,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:34,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 07:26:35,599 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-05-01 07:26:35,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:35,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:35,609 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:35,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:35,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-05-01 07:26:36,198 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-05-01 07:26:36,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:36,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:36,210 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:36,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:36,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-05-01 07:26:36,851 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-05-01 07:26:36,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:36,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:36,866 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:36,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:36,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-05-01 07:26:37,580 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-05-01 07:26:37,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:37,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:37,592 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:37,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:37,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-05-01 07:26:38,312 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-05-01 07:26:38,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:38,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:38,324 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:38,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:38,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-05-01 07:26:38,941 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-05-01 07:26:38,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:38,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:38,953 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:38,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:38,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-05-01 07:26:39,690 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-05-01 07:26:39,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:39,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:39,702 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:39,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-05-01 07:26:40,397 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-05-01 07:26:40,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:40,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:40,409 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:40,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:40,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-05-01 07:26:41,223 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-05-01 07:26:41,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:41,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:41,236 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:41,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:41,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-05-01 07:26:42,087 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-05-01 07:26:42,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:42,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:42,104 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:42,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-05-01 07:26:42,993 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-05-01 07:26:43,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:43,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:26:43,008 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.5 percent of original size [2021-05-01 07:26:43,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-05-01 07:26:43,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-05-01 07:26:43,931 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-05-01 07:26:43,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:26:43,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:26:43,936 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:26:43,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237094138] [2021-05-01 07:26:43,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [237094138] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:26:43,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:26:43,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-05-01 07:26:43,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128650539] [2021-05-01 07:26:43,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-01 07:26:43,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:26:43,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-01 07:26:43,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1887, Unknown=0, NotChecked=0, Total=1980 [2021-05-01 07:26:43,938 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 43 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 41 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) [2021-05-01 07:26:45,618 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-05-01 07:26:46,246 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-05-01 07:26:47,025 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-05-01 07:26:47,738 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2021-05-01 07:26:48,479 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2021-05-01 07:26:49,266 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2021-05-01 07:26:50,160 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2021-05-01 07:26:50,996 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-05-01 07:26:51,914 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2021-05-01 07:26:52,908 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2021-05-01 07:26:53,866 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2021-05-01 07:26:55,022 WARN L205 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2021-05-01 07:26:56,031 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2021-05-01 07:26:57,261 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 106 [2021-05-01 07:26:58,276 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 110 [2021-05-01 07:26:59,230 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2021-05-01 07:27:00,633 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2021-05-01 07:27:01,728 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 122 [2021-05-01 07:27:03,158 WARN L205 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 126 [2021-05-01 07:27:04,186 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 130 [2021-05-01 07:27:05,574 WARN L205 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 134 [2021-05-01 07:27:06,602 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 138 [2021-05-01 07:27:07,838 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2021-05-01 07:27:09,426 WARN L205 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 146 [2021-05-01 07:27:11,072 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 156 DAG size of output: 150 [2021-05-01 07:27:12,261 WARN L205 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 154 [2021-05-01 07:27:13,935 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 164 DAG size of output: 158 [2021-05-01 07:27:15,391 WARN L205 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2021-05-01 07:27:16,665 WARN L205 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2021-05-01 07:27:18,029 WARN L205 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 170 [2021-05-01 07:27:19,390 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 174 [2021-05-01 07:27:21,216 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 184 DAG size of output: 178 [2021-05-01 07:27:23,110 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 188 DAG size of output: 182 [2021-05-01 07:27:24,851 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 192 DAG size of output: 186 [2021-05-01 07:27:26,620 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2021-05-01 07:27:28,100 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 78 [2021-05-01 07:27:29,260 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 82 [2021-05-01 07:27:30,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:27:30,282 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-05-01 07:27:30,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-01 07:27:30,288 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 41 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 [2021-05-01 07:27:30,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:27:30,289 INFO L225 Difference]: With dead ends: 56 [2021-05-01 07:27:30,289 INFO L226 Difference]: Without dead ends: 50 [2021-05-01 07:27:30,290 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 54168.7ms TimeCoverageRelationStatistics Valid=342, Invalid=6798, Unknown=0, NotChecked=0, Total=7140 [2021-05-01 07:27:30,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-05-01 07:27:30,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-05-01 07:27:30,326 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) [2021-05-01 07:27:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-05-01 07:27:30,326 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2021-05-01 07:27:30,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:27:30,326 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-05-01 07:27:30,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 41 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) [2021-05-01 07:27:30,326 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-05-01 07:27:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-01 07:27:30,327 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:27:30,327 INFO L519 BasicCegarLoop]: trace histogram [35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:27:30,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-05-01 07:27:30,327 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:27:30,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:27:30,327 INFO L82 PathProgramCache]: Analyzing trace with hash 481941068, now seen corresponding path program 35 times [2021-05-01 07:27:30,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:27:30,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1492619590] [2021-05-01 07:27:30,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:27:30,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:27:30,344 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_703 0)) InVars {main_~x~0=v_main_~x~0_703} OutVars{main_~x~0=v_main_~x~0_703} AuxVars[] AssignedVars[] [2021-05-01 07:27:30,347 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:27:30,356 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,364 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,372 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,379 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,388 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,398 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,407 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,409 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,418 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:27:30,426 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:27:30,428 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:27:30,441 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:27:30,452 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,463 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,474 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,485 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,487 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:27:30,602 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-05-01 07:27:30,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:27:30,608 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:27:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:27:30,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:30,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:30,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:30,651 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-05-01 07:27:30,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 07:27:30,711 INFO L142 QuantifierPusher]: treesize reduction 23, result has 71.3 percent of original size [2021-05-01 07:27:30,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:27:30,827 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 14 [2021-05-01 07:27:30,832 INFO L142 QuantifierPusher]: treesize reduction 27, result has 70.0 percent of original size [2021-05-01 07:27:30,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-05-01 07:27:31,048 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-05-01 07:27:31,053 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.4 percent of original size [2021-05-01 07:27:31,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:27:31,201 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 16 [2021-05-01 07:27:31,204 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:27:31,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:27:31,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:27:31,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:27:31,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:31,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:27:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:27:31,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:27:31,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:31,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:27:31,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-05-01 07:27:31,567 INFO L142 QuantifierPusher]: treesize reduction 17, result has 80.5 percent of original size [2021-05-01 07:27:31,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:31,571 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:31,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:31,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:27:31,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:31,678 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:31,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:31,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:27:31,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:31,796 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:31,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:31,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:27:31,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:31,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:31,946 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:31,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:31,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-05-01 07:27:32,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:32,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:32,132 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:32,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:32,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 07:27:32,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:32,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:32,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:32,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:32,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 07:27:32,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:32,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:32,613 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:32,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:32,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-05-01 07:27:32,884 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-01 07:27:32,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:32,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:32,894 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:32,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:32,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 07:27:33,153 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:27:33,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:33,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:33,162 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:33,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:33,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-05-01 07:27:33,502 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-05-01 07:27:33,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:33,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:33,511 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:33,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:33,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-05-01 07:27:33,872 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-05-01 07:27:33,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:33,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:33,881 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:33,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:33,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 07:27:34,226 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-05-01 07:27:34,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:34,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:34,236 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:34,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:34,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-05-01 07:27:34,647 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-05-01 07:27:34,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:34,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:34,656 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:34,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:34,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-05-01 07:27:35,094 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-05-01 07:27:35,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:35,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:35,103 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:35,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:35,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-05-01 07:27:35,563 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-05-01 07:27:35,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:35,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:35,572 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:35,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:35,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-05-01 07:27:36,024 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-05-01 07:27:36,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:36,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:36,033 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:36,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-05-01 07:27:36,561 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-05-01 07:27:36,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:36,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:36,572 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:36,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:36,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-05-01 07:27:37,120 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-05-01 07:27:37,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:37,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:37,129 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:37,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:37,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-05-01 07:27:37,684 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-05-01 07:27:37,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:37,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:37,695 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:37,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:37,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-05-01 07:27:38,269 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-05-01 07:27:38,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:38,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:38,278 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:38,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:38,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-05-01 07:27:38,737 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-05-01 07:27:38,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:38,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:38,748 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:38,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:38,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 07:27:39,296 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-05-01 07:27:39,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:39,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:39,307 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:39,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:39,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-05-01 07:27:39,877 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-05-01 07:27:39,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:39,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:39,887 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:39,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:39,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-05-01 07:27:40,563 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-01 07:27:40,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:40,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:40,575 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:40,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:40,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-05-01 07:27:41,335 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:27:41,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:41,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:41,346 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:41,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:41,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-05-01 07:27:42,138 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:27:42,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:42,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:42,150 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:42,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:42,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-05-01 07:27:42,977 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:27:42,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:42,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:42,988 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:42,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:42,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-05-01 07:27:43,839 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 07:27:43,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:43,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:43,849 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:43,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:43,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-05-01 07:27:44,742 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-05-01 07:27:44,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:44,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:44,756 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:44,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:44,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-05-01 07:27:45,568 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-05-01 07:27:45,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:45,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:45,579 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:45,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:45,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-05-01 07:27:46,405 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-05-01 07:27:46,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:46,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:46,425 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:46,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:46,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-05-01 07:27:47,345 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-05-01 07:27:47,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:47,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:47,357 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:47,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:47,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-05-01 07:27:48,293 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-05-01 07:27:48,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:48,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:48,308 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:48,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:48,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-05-01 07:27:49,225 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-05-01 07:27:49,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:49,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:49,239 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:49,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:49,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-05-01 07:27:50,267 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-05-01 07:27:50,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:50,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:27:50,284 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:27:50,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:27:50,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-05-01 07:27:51,242 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-05-01 07:27:51,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:27:51,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:27:51,248 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:27:51,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1492619590] [2021-05-01 07:27:51,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1492619590] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:27:51,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:27:51,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-05-01 07:27:51,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057119846] [2021-05-01 07:27:51,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-01 07:27:51,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:27:51,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-01 07:27:51,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1938, Unknown=0, NotChecked=0, Total=2070 [2021-05-01 07:27:51,250 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 44 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 42 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) [2021-05-01 07:27:53,128 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:27:53,788 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-01 07:27:54,413 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:27:55,066 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-05-01 07:27:55,734 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-05-01 07:27:56,391 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-05-01 07:27:57,012 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-05-01 07:27:57,749 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-05-01 07:27:58,352 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-05-01 07:27:59,069 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-05-01 07:27:59,769 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-05-01 07:28:00,460 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-05-01 07:28:01,159 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-05-01 07:28:01,882 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-05-01 07:28:02,626 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-05-01 07:28:03,363 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-05-01 07:28:04,179 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-05-01 07:28:05,090 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-05-01 07:28:05,978 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-05-01 07:28:06,996 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-01 07:28:07,955 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-05-01 07:28:08,824 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 07:28:09,724 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-05-01 07:28:10,740 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-05-01 07:28:11,862 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-05-01 07:28:12,927 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-05-01 07:28:14,098 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-05-01 07:28:15,233 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-05-01 07:28:16,459 WARN L205 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-05-01 07:28:17,535 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-05-01 07:28:18,556 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2021-05-01 07:28:19,622 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-05-01 07:28:20,793 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2021-05-01 07:28:21,930 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-05-01 07:28:23,077 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-05-01 07:28:24,192 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2021-05-01 07:28:25,747 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 73 [2021-05-01 07:28:27,175 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 78 [2021-05-01 07:28:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:28:27,899 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2021-05-01 07:28:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-01 07:28:27,904 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 42 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 [2021-05-01 07:28:27,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:28:27,904 INFO L225 Difference]: With dead ends: 57 [2021-05-01 07:28:27,904 INFO L226 Difference]: Without dead ends: 51 [2021-05-01 07:28:27,905 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1156 ImplicationChecksByTransitivity, 47672.1ms TimeCoverageRelationStatistics Valid=387, Invalid=7095, Unknown=0, NotChecked=0, Total=7482 [2021-05-01 07:28:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-01 07:28:27,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-05-01 07:28:27,942 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) [2021-05-01 07:28:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-05-01 07:28:27,942 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2021-05-01 07:28:27,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:28:27,942 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-05-01 07:28:27,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 42 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) [2021-05-01 07:28:27,943 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-05-01 07:28:27,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-01 07:28:27,943 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:28:27,943 INFO L519 BasicCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:28:27,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-05-01 07:28:27,943 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:28:27,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:28:27,944 INFO L82 PathProgramCache]: Analyzing trace with hash -714638094, now seen corresponding path program 36 times [2021-05-01 07:28:27,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:28:27,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315331346] [2021-05-01 07:28:27,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:28:27,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:27,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:28:27,960 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_741 0)) InVars {main_~x~0=v_main_~x~0_741} OutVars{main_~x~0=v_main_~x~0_741} AuxVars[] AssignedVars[] [2021-05-01 07:28:27,963 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:28:27,971 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:27,979 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:27,987 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:27,995 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,002 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,011 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,019 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,022 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,030 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:28:28,036 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:28:28,038 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:28:28,045 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,053 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,062 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,071 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,082 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:28:28,084 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:28:28,198 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-01 07:28:28,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:28:28,205 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:28:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:28:28,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:28:28,226 INFO L142 QuantifierPusher]: treesize reduction 8, result has 73.3 percent of original size [2021-05-01 07:28:28,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 07:28:28,321 INFO L142 QuantifierPusher]: treesize reduction 67, result has 54.4 percent of original size [2021-05-01 07:28:28,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:28:28,736 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-05-01 07:28:28,740 INFO L142 QuantifierPusher]: treesize reduction 48, result has 55.1 percent of original size [2021-05-01 07:28:28,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:28:28,889 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 14 [2021-05-01 07:28:28,893 INFO L142 QuantifierPusher]: treesize reduction 51, result has 41.4 percent of original size [2021-05-01 07:28:28,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:28:28,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:28,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:28:29,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:29,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:28:29,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:29,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:28:29,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:28:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:28:29,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:29,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:28:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:28:29,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:29,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:29,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:29,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:28:29,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:28:29,393 INFO L142 QuantifierPusher]: treesize reduction 23, result has 76.3 percent of original size [2021-05-01 07:28:29,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:29,397 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:29,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:29,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:28:29,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:29,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:29,573 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:29,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:29,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:28:29,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:29,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:29,759 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:29,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:29,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:28:29,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:29,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:29,970 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:29,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:29,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:28:30,225 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-05-01 07:28:30,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:30,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:30,234 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:30,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:30,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:28:30,518 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-05-01 07:28:30,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:30,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:30,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:30,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:30,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:28:30,846 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-01 07:28:30,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:30,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:30,856 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:30,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:30,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:28:31,216 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:28:31,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:31,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:31,226 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:31,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:31,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 07:28:31,545 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-01 07:28:31,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:31,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:31,554 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:31,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:31,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 07:28:31,938 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-05-01 07:28:31,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:31,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:31,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:31,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:31,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:28:32,355 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-05-01 07:28:32,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:32,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:32,364 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:32,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:32,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 07:28:32,770 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-05-01 07:28:32,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:32,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:32,780 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:32,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:32,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-05-01 07:28:33,195 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-05-01 07:28:33,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:33,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:33,204 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:33,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:33,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:28:33,755 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-05-01 07:28:33,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:33,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:33,766 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:33,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:33,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 07:28:34,341 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-05-01 07:28:34,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:34,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:34,363 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:34,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:34,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 07:28:34,985 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:28:34,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:34,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:34,994 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:34,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:34,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 07:28:35,612 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-05-01 07:28:35,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:35,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:35,623 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:35,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:35,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 07:28:36,261 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-01 07:28:36,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:36,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:36,270 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:36,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:36,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 07:28:36,916 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:28:36,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:36,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:36,927 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:36,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:36,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-05-01 07:28:37,611 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-05-01 07:28:37,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:37,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:37,622 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:37,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:37,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-05-01 07:28:38,397 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-05-01 07:28:38,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:38,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:38,408 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:38,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:38,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-05-01 07:28:39,215 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-05-01 07:28:39,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:39,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:39,226 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:39,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:39,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-05-01 07:28:40,150 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-05-01 07:28:40,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:40,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:40,161 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:40,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:40,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-05-01 07:28:41,045 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-05-01 07:28:41,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:41,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:41,058 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:41,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:41,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 07:28:42,085 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:28:42,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:42,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:42,099 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:42,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-05-01 07:28:43,085 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:28:43,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:43,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:43,098 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:43,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:43,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-05-01 07:28:44,101 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:28:44,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:44,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:44,113 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:44,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:44,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-05-01 07:28:45,159 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 07:28:45,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:45,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:45,171 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:45,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:45,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-05-01 07:28:46,227 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 07:28:46,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:46,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:46,240 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:46,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:46,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-05-01 07:28:47,343 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-05-01 07:28:47,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:47,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:47,356 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:47,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:47,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-05-01 07:28:48,370 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-05-01 07:28:48,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:48,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:48,384 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:48,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:48,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-05-01 07:28:49,501 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-05-01 07:28:49,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:49,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:49,515 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:49,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:49,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-05-01 07:28:50,936 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-05-01 07:28:50,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:50,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:50,951 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:50,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:50,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-05-01 07:28:52,260 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-05-01 07:28:52,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:52,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:52,274 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:52,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:52,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-05-01 07:28:53,607 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-05-01 07:28:53,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:53,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:53,623 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:53,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:53,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 272 [2021-05-01 07:28:55,073 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-05-01 07:28:55,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:55,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:28:55,085 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:28:55,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:28:55,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-05-01 07:28:56,538 WARN L205 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-05-01 07:28:56,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:28:56,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:28:56,545 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:28:56,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315331346] [2021-05-01 07:28:56,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [315331346] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:28:56,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:28:56,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-05-01 07:28:56,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048335820] [2021-05-01 07:28:56,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-01 07:28:56,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:28:56,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-01 07:28:56,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1941, Unknown=0, NotChecked=0, Total=2070 [2021-05-01 07:28:56,546 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 44 states, 43 states have (on average 1.069767441860465) internal successors, (46), 42 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) [2021-05-01 07:28:57,974 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-05-01 07:28:58,772 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:28:59,521 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-01 07:29:00,314 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-05-01 07:29:01,071 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-05-01 07:29:01,951 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-05-01 07:29:02,854 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-05-01 07:29:03,705 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-05-01 07:29:04,557 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-05-01 07:29:05,518 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:29:06,463 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-05-01 07:29:07,386 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-01 07:29:08,272 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:29:09,195 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-05-01 07:29:10,214 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-05-01 07:29:11,198 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-05-01 07:29:12,250 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-05-01 07:29:13,273 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-05-01 07:29:14,298 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:29:15,288 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:29:16,361 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:29:17,445 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 07:29:18,562 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 07:29:19,720 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-05-01 07:29:21,077 WARN L205 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-05-01 07:29:22,313 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-05-01 07:29:23,583 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-05-01 07:29:24,915 WARN L205 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-05-01 07:29:26,156 WARN L205 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-05-01 07:29:27,508 WARN L205 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-05-01 07:29:28,853 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-05-01 07:29:30,218 WARN L205 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-05-01 07:29:31,574 WARN L205 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-05-01 07:29:32,972 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-05-01 07:29:34,653 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 191 [2021-05-01 07:29:36,200 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2021-05-01 07:29:37,834 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 199 [2021-05-01 07:29:39,946 WARN L205 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 76 [2021-05-01 07:29:41,685 WARN L205 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 81 [2021-05-01 07:29:42,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:29:42,613 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-05-01 07:29:42,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-01 07:29:42,620 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 1.069767441860465) internal successors, (46), 42 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 [2021-05-01 07:29:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:29:42,620 INFO L225 Difference]: With dead ends: 58 [2021-05-01 07:29:42,620 INFO L226 Difference]: Without dead ends: 52 [2021-05-01 07:29:42,621 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 62511.1ms TimeCoverageRelationStatistics Valid=344, Invalid=7138, Unknown=0, NotChecked=0, Total=7482 [2021-05-01 07:29:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-05-01 07:29:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-05-01 07:29:42,660 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) [2021-05-01 07:29:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-05-01 07:29:42,661 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2021-05-01 07:29:42,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:29:42,661 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-05-01 07:29:42,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 43 states have (on average 1.069767441860465) internal successors, (46), 42 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) [2021-05-01 07:29:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-05-01 07:29:42,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-01 07:29:42,662 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:29:42,662 INFO L519 BasicCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:29:42,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-01 07:29:42,662 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:29:42,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:29:42,662 INFO L82 PathProgramCache]: Analyzing trace with hash 846113548, now seen corresponding path program 37 times [2021-05-01 07:29:42,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:29:42,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32301121] [2021-05-01 07:29:42,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:29:42,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:29:42,686 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_780 0)) InVars {main_~x~0=v_main_~x~0_780} OutVars{main_~x~0=v_main_~x~0_780} AuxVars[] AssignedVars[] [2021-05-01 07:29:42,691 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:29:42,702 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,714 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,726 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,737 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,747 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,758 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,769 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,772 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,782 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:29:42,792 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:29:42,795 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:29:42,809 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:29:42,824 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,840 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,856 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,872 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:42,875 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:29:43,032 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-01 07:29:43,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:43,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:29:43,040 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:29:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:29:43,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:43,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:29:43,062 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-05-01 07:29:43,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:29:43,176 INFO L142 QuantifierPusher]: treesize reduction 27, result has 80.0 percent of original size [2021-05-01 07:29:43,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-05-01 07:29:43,442 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2021-05-01 07:29:43,447 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.8 percent of original size [2021-05-01 07:29:43,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-05-01 07:29:43,813 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2021-05-01 07:29:43,817 INFO L142 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-05-01 07:29:43,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:29:43,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:43,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:29:43,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:43,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:29:43,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:43,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:29:44,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:29:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:29:44,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:44,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:29:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:29:44,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:44,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:44,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:44,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-05-01 07:29:44,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-05-01 07:29:44,177 INFO L142 QuantifierPusher]: treesize reduction 23, result has 74.7 percent of original size [2021-05-01 07:29:44,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:44,180 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:44,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:29:44,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:44,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:44,309 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:44,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:44,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:29:44,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:44,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:44,473 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:44,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:44,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:29:44,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:44,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:44,673 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:44,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:44,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:29:44,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:44,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:44,877 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:44,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:44,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:29:45,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:45,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:45,123 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:45,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:45,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:29:45,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:45,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:45,379 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:45,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:29:45,643 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-05-01 07:29:45,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:45,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:45,653 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:45,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:45,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:29:45,974 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:29:45,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:45,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:45,986 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:45,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:45,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-05-01 07:29:46,368 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-05-01 07:29:46,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:46,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:46,379 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:46,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:46,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-05-01 07:29:46,867 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-05-01 07:29:46,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:46,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:46,878 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:46,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:46,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 07:29:47,372 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-05-01 07:29:47,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:47,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:47,384 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:47,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:47,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-05-01 07:29:47,871 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-05-01 07:29:47,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:47,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:47,882 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:47,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:47,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-05-01 07:29:48,400 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-05-01 07:29:48,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:48,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:48,410 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:48,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:48,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 07:29:48,935 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-05-01 07:29:48,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:48,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:48,944 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:48,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:48,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 07:29:49,472 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-05-01 07:29:49,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:49,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:49,483 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:49,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:49,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 07:29:50,076 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-05-01 07:29:50,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:50,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:50,088 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:50,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:50,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 07:29:50,767 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-05-01 07:29:50,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:50,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:50,779 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:50,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:50,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 07:29:51,457 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-01 07:29:51,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:51,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:51,470 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:51,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:51,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 07:29:52,210 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-05-01 07:29:52,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:52,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:52,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:52,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:52,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-05-01 07:29:52,983 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-05-01 07:29:52,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:53,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:53,007 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:53,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:53,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-05-01 07:29:53,895 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-05-01 07:29:53,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:53,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:53,907 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:53,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:53,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-05-01 07:29:54,819 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-05-01 07:29:54,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:54,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:54,831 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:54,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:54,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-05-01 07:29:55,747 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-05-01 07:29:55,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:55,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:55,762 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:55,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:55,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-05-01 07:29:56,722 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-05-01 07:29:56,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:56,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:56,734 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:56,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:56,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 07:29:57,829 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-05-01 07:29:57,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:57,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:57,843 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:57,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:57,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-05-01 07:29:58,832 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-05-01 07:29:58,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:58,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:58,845 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:58,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:58,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-05-01 07:29:59,845 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:29:59,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:29:59,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:29:59,859 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:29:59,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:29:59,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-05-01 07:30:01,093 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 07:30:01,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:01,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:01,107 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:01,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:01,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-05-01 07:30:02,518 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-05-01 07:30:02,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:02,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:02,533 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:02,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:02,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-05-01 07:30:03,779 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-01 07:30:03,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:03,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:03,797 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:03,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:03,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-05-01 07:30:05,198 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-05-01 07:30:05,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:05,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:05,218 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:05,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:05,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-05-01 07:30:06,613 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-05-01 07:30:06,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:06,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:06,631 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:06,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:06,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-05-01 07:30:08,182 WARN L205 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-05-01 07:30:08,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:08,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:08,198 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:08,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:08,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-05-01 07:30:09,840 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-05-01 07:30:09,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:09,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:09,858 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:09,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:09,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-05-01 07:30:11,400 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-05-01 07:30:11,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:11,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:11,417 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:11,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:11,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 272 [2021-05-01 07:30:13,206 WARN L205 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-05-01 07:30:13,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:13,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:30:13,221 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:30:13,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:30:13,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-05-01 07:30:14,981 WARN L205 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-05-01 07:30:14,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:30:14,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:30:14,991 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:30:14,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32301121] [2021-05-01 07:30:14,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [32301121] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:30:14,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:30:14,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2021-05-01 07:30:14,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204167472] [2021-05-01 07:30:14,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-01 07:30:14,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:30:14,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-01 07:30:14,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=2028, Unknown=0, NotChecked=0, Total=2162 [2021-05-01 07:30:14,993 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 45 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 43 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) [2021-05-01 07:30:16,732 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:30:17,720 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-05-01 07:30:18,779 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:30:19,833 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-05-01 07:30:20,937 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-05-01 07:30:22,071 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-05-01 07:30:23,252 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-05-01 07:30:24,390 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-05-01 07:30:25,477 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-05-01 07:30:26,734 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-05-01 07:30:27,957 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-05-01 07:30:29,141 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-05-01 07:30:30,328 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-01 07:30:31,529 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-05-01 07:30:32,766 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-05-01 07:30:34,041 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-05-01 07:30:35,211 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-05-01 07:30:36,442 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-05-01 07:30:37,858 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-05-01 07:30:39,290 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-05-01 07:30:40,779 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-05-01 07:30:42,029 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 07:30:43,474 WARN L205 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 07:30:44,923 WARN L205 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-05-01 07:30:46,299 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-05-01 07:30:47,793 WARN L205 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-05-01 07:30:49,141 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-05-01 07:30:50,582 WARN L205 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2021-05-01 07:30:52,245 WARN L205 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-05-01 07:30:53,877 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-05-01 07:30:55,462 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-05-01 07:30:57,413 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 176 [2021-05-01 07:30:58,907 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-05-01 07:31:00,621 WARN L205 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-05-01 07:31:02,447 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 188 [2021-05-01 07:31:04,246 WARN L205 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-05-01 07:31:06,473 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 196 [2021-05-01 07:31:08,689 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 200 [2021-05-01 07:31:11,630 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 235 DAG size of output: 77 [2021-05-01 07:31:13,792 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 226 DAG size of output: 82 [2021-05-01 07:31:13,968 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-05-01 07:31:14,450 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-05-01 07:31:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:31:15,042 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2021-05-01 07:31:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-01 07:31:15,053 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 43 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 [2021-05-01 07:31:15,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:31:15,057 INFO L225 Difference]: With dead ends: 59 [2021-05-01 07:31:15,057 INFO L226 Difference]: Without dead ends: 53 [2021-05-01 07:31:15,058 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 75639.1ms TimeCoverageRelationStatistics Valid=354, Invalid=7478, Unknown=0, NotChecked=0, Total=7832 [2021-05-01 07:31:15,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-05-01 07:31:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-05-01 07:31:15,102 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) [2021-05-01 07:31:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2021-05-01 07:31:15,102 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2021-05-01 07:31:15,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:31:15,103 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2021-05-01 07:31:15,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 43 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) [2021-05-01 07:31:15,103 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2021-05-01 07:31:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-01 07:31:15,103 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:31:15,103 INFO L519 BasicCegarLoop]: trace histogram [38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:31:15,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-05-01 07:31:15,103 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:31:15,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:31:15,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1984774194, now seen corresponding path program 38 times [2021-05-01 07:31:15,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:31:15,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111236954] [2021-05-01 07:31:15,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:31:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:31:15,133 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_820 0)) InVars {main_~x~0=v_main_~x~0_820} OutVars{main_~x~0=v_main_~x~0_820} AuxVars[] AssignedVars[] [2021-05-01 07:31:15,138 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:31:15,142 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,155 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:31:15,170 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:31:15,174 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:31:15,193 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:31:15,211 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,229 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,244 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,262 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,276 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,291 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,305 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,319 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,335 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,350 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,369 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,374 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:31:15,600 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-05-01 07:31:15,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:31:15,611 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:31:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:31:15,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:31:15,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:15,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:31:15,650 INFO L142 QuantifierPusher]: treesize reduction 27, result has 20.6 percent of original size [2021-05-01 07:31:15,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 07:31:15,705 INFO L142 QuantifierPusher]: treesize reduction 55, result has 39.6 percent of original size [2021-05-01 07:31:15,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:31:15,879 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 11 [2021-05-01 07:31:15,888 INFO L142 QuantifierPusher]: treesize reduction 70, result has 48.1 percent of original size [2021-05-01 07:31:15,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:31:16,427 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-05-01 07:31:16,435 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-05-01 07:31:16,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:31:16,750 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 16 [2021-05-01 07:31:16,757 INFO L142 QuantifierPusher]: treesize reduction 51, result has 41.4 percent of original size [2021-05-01 07:31:16,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:31:16,949 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 9 [2021-05-01 07:31:16,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:16,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:31:17,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:17,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:31:17,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:17,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:31:17,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:31:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:31:17,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:17,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:31:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:31:17,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:17,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:17,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:17,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:31:17,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:31:17,475 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:31:17,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:17,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:17,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:31:17,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:17,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:17,667 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:17,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:17,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:31:17,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:17,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:17,919 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:17,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:17,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:31:18,210 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-01 07:31:18,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:18,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:18,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:18,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:18,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:31:18,529 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-01 07:31:18,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:18,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:18,543 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:18,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:18,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:31:18,884 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-05-01 07:31:18,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:18,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:18,897 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:18,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:18,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:31:19,252 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-05-01 07:31:19,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:19,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:19,266 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:19,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:19,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:31:19,715 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-01 07:31:19,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:19,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:19,730 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:19,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:19,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:31:20,144 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:31:20,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:20,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:20,156 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:20,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:20,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:31:20,616 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-01 07:31:20,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:20,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:20,629 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:20,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:20,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:31:21,176 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-05-01 07:31:21,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:21,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:21,188 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:21,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:21,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:31:21,710 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-05-01 07:31:21,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:21,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:21,724 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:21,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:21,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:31:22,313 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-05-01 07:31:22,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:22,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:22,327 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:22,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:22,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:31:23,044 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-05-01 07:31:23,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:23,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:23,059 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:23,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:23,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:31:23,838 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-05-01 07:31:23,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:23,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:23,854 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:23,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:23,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:31:24,598 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-05-01 07:31:24,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:24,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:24,614 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:24,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:24,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:31:25,406 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:31:25,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:25,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:25,422 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:25,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:25,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:31:26,210 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-05-01 07:31:26,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:26,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:26,225 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:26,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:26,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:31:27,115 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-01 07:31:27,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:27,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:27,131 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:27,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:27,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:31:28,144 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:31:28,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:28,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:28,161 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:28,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:28,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-05-01 07:31:29,141 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-05-01 07:31:29,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:29,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:29,156 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:29,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:29,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 07:31:30,106 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-05-01 07:31:30,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:30,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:30,120 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:30,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 07:31:31,130 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-05-01 07:31:31,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:31,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:31,147 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:31,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:31,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-05-01 07:31:32,438 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-05-01 07:31:32,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:32,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:32,459 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:32,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:32,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-05-01 07:31:33,577 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-05-01 07:31:33,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:33,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:33,592 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:33,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:33,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-05-01 07:31:34,867 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:31:34,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:34,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:34,883 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:34,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:34,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-05-01 07:31:36,282 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:31:36,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:36,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:36,297 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:36,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:36,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-05-01 07:31:37,657 WARN L205 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:31:37,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:37,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:37,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:37,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:37,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-05-01 07:31:39,085 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 07:31:39,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:39,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:39,101 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:39,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:39,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-05-01 07:31:40,724 WARN L205 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 07:31:40,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:40,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:40,742 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:40,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:40,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 07:31:42,267 WARN L205 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-05-01 07:31:42,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:42,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:42,283 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:42,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:42,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-05-01 07:31:43,795 WARN L205 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-05-01 07:31:43,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:43,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:43,813 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:43,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:43,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-05-01 07:31:45,690 WARN L205 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-05-01 07:31:45,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:45,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:45,709 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:45,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:45,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-05-01 07:31:48,010 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 159 [2021-05-01 07:31:48,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:48,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:48,029 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:48,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:48,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-05-01 07:31:49,844 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-05-01 07:31:49,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:49,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:49,860 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:49,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:49,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-05-01 07:31:51,591 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-05-01 07:31:51,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:51,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:51,606 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:51,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:51,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-05-01 07:31:53,823 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 171 [2021-05-01 07:31:53,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:53,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:53,846 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:53,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:53,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-05-01 07:31:56,124 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 175 [2021-05-01 07:31:56,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:56,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:31:56,145 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:31:56,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:31:56,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-05-01 07:31:58,002 WARN L205 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-05-01 07:31:58,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:31:58,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:31:58,011 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:31:58,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111236954] [2021-05-01 07:31:58,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1111236954] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:31:58,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:31:58,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2021-05-01 07:31:58,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941920650] [2021-05-01 07:31:58,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-05-01 07:31:58,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:31:58,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-05-01 07:31:58,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=2251, Unknown=0, NotChecked=0, Total=2352 [2021-05-01 07:31:58,013 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 47 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 45 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) [2021-05-01 07:31:59,391 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-05-01 07:32:01,506 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-05-01 07:32:02,876 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2021-05-01 07:32:04,287 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2021-05-01 07:32:05,737 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2021-05-01 07:32:07,164 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2021-05-01 07:32:09,134 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2021-05-01 07:32:10,705 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-05-01 07:32:12,368 WARN L205 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2021-05-01 07:32:14,215 WARN L205 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2021-05-01 07:32:16,054 WARN L205 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2021-05-01 07:32:17,810 WARN L205 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2021-05-01 07:32:19,783 WARN L205 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2021-05-01 07:32:21,941 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2021-05-01 07:32:24,251 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2021-05-01 07:32:26,857 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2021-05-01 07:32:28,574 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 110 [2021-05-01 07:32:30,511 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 117 DAG size of output: 114 [2021-05-01 07:32:32,651 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2021-05-01 07:32:35,413 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2021-05-01 07:32:37,657 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 129 DAG size of output: 126 [2021-05-01 07:32:39,992 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 133 DAG size of output: 130 [2021-05-01 07:32:41,910 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 137 DAG size of output: 134 [2021-05-01 07:32:44,064 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 141 DAG size of output: 138 [2021-05-01 07:32:46,459 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 145 DAG size of output: 142 [2021-05-01 07:32:48,606 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 149 DAG size of output: 146 [2021-05-01 07:32:51,799 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 153 DAG size of output: 150 [2021-05-01 07:32:55,184 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 157 DAG size of output: 154 [2021-05-01 07:32:58,285 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 161 DAG size of output: 158 [2021-05-01 07:33:00,732 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2021-05-01 07:33:03,565 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 169 DAG size of output: 166 [2021-05-01 07:33:06,099 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2021-05-01 07:33:08,518 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 177 DAG size of output: 174 [2021-05-01 07:33:12,930 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 181 DAG size of output: 178 [2021-05-01 07:33:16,167 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2021-05-01 07:33:20,180 WARN L205 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 189 DAG size of output: 186 [2021-05-01 07:33:23,678 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2021-05-01 07:33:27,913 WARN L205 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2021-05-01 07:33:33,774 WARN L205 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 201 DAG size of output: 198 [2021-05-01 07:33:37,731 WARN L205 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 205 DAG size of output: 202 [2021-05-01 07:33:40,939 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2021-05-01 07:33:43,717 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 227 DAG size of output: 78 [2021-05-01 07:33:44,194 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-05-01 07:33:44,984 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-05-01 07:33:45,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:33:45,663 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2021-05-01 07:33:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-01 07:33:45,676 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 45 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 [2021-05-01 07:33:45,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:33:45,678 INFO L225 Difference]: With dead ends: 60 [2021-05-01 07:33:45,678 INFO L226 Difference]: Without dead ends: 54 [2021-05-01 07:33:45,679 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 130838.4ms TimeCoverageRelationStatistics Valid=374, Invalid=8182, Unknown=0, NotChecked=0, Total=8556 [2021-05-01 07:33:45,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-05-01 07:33:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-05-01 07:33:45,722 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) [2021-05-01 07:33:45,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-05-01 07:33:45,722 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2021-05-01 07:33:45,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:33:45,722 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-05-01 07:33:45,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 47 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 45 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) [2021-05-01 07:33:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-05-01 07:33:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-01 07:33:45,723 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:33:45,723 INFO L519 BasicCegarLoop]: trace histogram [39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:33:45,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-05-01 07:33:45,723 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:33:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:33:45,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1371451444, now seen corresponding path program 39 times [2021-05-01 07:33:45,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:33:45,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290346776] [2021-05-01 07:33:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:33:45,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:33:45,756 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_861 0)) InVars {main_~x~0=v_main_~x~0_861} OutVars{main_~x~0=v_main_~x~0_861} AuxVars[] AssignedVars[] [2021-05-01 07:33:45,761 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:33:45,776 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,797 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,812 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,829 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,844 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,860 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,876 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,880 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,895 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:33:45,910 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:33:45,915 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:33:45,941 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:33:45,968 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:45,995 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:46,023 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:46,048 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:46,052 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:33:46,306 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-05-01 07:33:46,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:46,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:33:46,318 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:33:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:33:46,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:46,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:33:46,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:46,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:33:46,357 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-05-01 07:33:46,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:33:46,367 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-05-01 07:33:46,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-01 07:33:46,683 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 12 [2021-05-01 07:33:46,694 INFO L142 QuantifierPusher]: treesize reduction 22, result has 74.4 percent of original size [2021-05-01 07:33:46,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-05-01 07:33:47,526 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2021-05-01 07:33:47,535 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-05-01 07:33:47,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:33:48,465 WARN L205 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2021-05-01 07:33:48,478 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-05-01 07:33:48,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-01 07:33:48,664 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 9 [2021-05-01 07:33:48,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:48,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:33:48,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:48,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:33:48,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:48,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:33:48,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:33:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:33:49,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:49,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:33:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:33:49,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:49,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:49,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:49,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:33:49,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:33:49,187 INFO L142 QuantifierPusher]: treesize reduction 17, result has 79.3 percent of original size [2021-05-01 07:33:49,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:49,191 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:49,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:49,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:33:49,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:49,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:49,358 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:49,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:49,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:33:49,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:49,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:49,580 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:49,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:49,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-05-01 07:33:49,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:49,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:49,837 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:49,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:49,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-05-01 07:33:50,146 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-01 07:33:50,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:50,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:50,159 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:50,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:50,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 07:33:50,452 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-05-01 07:33:50,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:50,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:50,464 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:50,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:50,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-05-01 07:33:50,836 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-05-01 07:33:50,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:50,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:50,850 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:50,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:50,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-05-01 07:33:51,308 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-01 07:33:51,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:51,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:51,323 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:51,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:51,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-05-01 07:33:51,863 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:33:51,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:51,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:51,878 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:51,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:51,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 07:33:52,513 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-01 07:33:52,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:52,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:52,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:52,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:52,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-05-01 07:33:53,165 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-05-01 07:33:53,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:53,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:53,180 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:53,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:53,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 07:33:53,891 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-05-01 07:33:53,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:53,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:53,906 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:53,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:53,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-05-01 07:33:54,563 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-05-01 07:33:54,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:54,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:54,578 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:54,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:54,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-05-01 07:33:55,300 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-05-01 07:33:55,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:55,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:55,313 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:55,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:55,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 07:33:56,096 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-05-01 07:33:56,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:56,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:56,110 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:56,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:56,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-05-01 07:33:56,948 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-05-01 07:33:56,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:56,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:56,963 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:56,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:56,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 07:33:57,864 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:33:57,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:57,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:57,880 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:57,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:57,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 07:33:58,880 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-05-01 07:33:58,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:58,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:58,895 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:58,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:58,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-05-01 07:33:59,839 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-01 07:33:59,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:33:59,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:33:59,854 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:33:59,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:33:59,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 07:34:00,860 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:34:00,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:00,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:00,875 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:00,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:00,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-05-01 07:34:01,925 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-05-01 07:34:01,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:01,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:01,942 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:01,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:01,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 07:34:03,225 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-05-01 07:34:03,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:03,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:03,246 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:03,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:03,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 07:34:04,624 WARN L205 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-05-01 07:34:04,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:04,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:04,643 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:04,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:04,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-05-01 07:34:06,134 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-05-01 07:34:06,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:06,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:06,155 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:06,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:06,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-05-01 07:34:07,793 WARN L205 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-05-01 07:34:07,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:07,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:07,812 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:07,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:07,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-05-01 07:34:09,405 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:34:09,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:09,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:09,423 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:09,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:09,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-05-01 07:34:11,063 WARN L205 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:34:11,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:11,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:11,082 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:11,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:11,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-05-01 07:34:12,765 WARN L205 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:34:12,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:12,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:12,784 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:12,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:12,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-05-01 07:34:14,600 WARN L205 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 07:34:14,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:14,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:14,619 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:14,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:14,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-05-01 07:34:16,542 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 07:34:16,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:16,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:16,560 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:16,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:16,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 07:34:18,576 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 147 [2021-05-01 07:34:18,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:18,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:18,594 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:18,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:18,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-05-01 07:34:20,493 WARN L205 SmtUtils]: Spent 944.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-05-01 07:34:20,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:20,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:20,515 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:20,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:20,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-05-01 07:34:22,371 WARN L205 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-05-01 07:34:22,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:22,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:22,390 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:22,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:22,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-05-01 07:34:24,612 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 159 [2021-05-01 07:34:24,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:24,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:24,633 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:24,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:24,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-05-01 07:34:26,863 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 163 [2021-05-01 07:34:26,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:26,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:26,884 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:26,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:26,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-05-01 07:34:29,120 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 167 [2021-05-01 07:34:29,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:29,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:29,141 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:29,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:29,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-05-01 07:34:31,213 WARN L205 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-05-01 07:34:31,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:31,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:31,242 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:31,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:31,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-05-01 07:34:33,936 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 175 [2021-05-01 07:34:33,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:33,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:33,960 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:33,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:33,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-05-01 07:34:36,472 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 179 [2021-05-01 07:34:36,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:36,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:34:36,492 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:34:36,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:34:36,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 287 [2021-05-01 07:34:38,951 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 183 [2021-05-01 07:34:38,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:34:38,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:34:38,963 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:34:38,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290346776] [2021-05-01 07:34:38,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1290346776] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:34:38,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:34:38,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2021-05-01 07:34:38,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685234870] [2021-05-01 07:34:38,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-05-01 07:34:38,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:34:38,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-05-01 07:34:38,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=2253, Unknown=0, NotChecked=0, Total=2352 [2021-05-01 07:34:38,964 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 47 states, 46 states have (on average 1.065217391304348) internal successors, (49), 45 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) [2021-05-01 07:34:41,403 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-01 07:34:42,635 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-01 07:34:44,120 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:34:45,692 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-01 07:34:47,362 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-05-01 07:34:49,188 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-05-01 07:34:50,696 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-05-01 07:34:52,187 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-05-01 07:34:53,774 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-05-01 07:34:55,491 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-05-01 07:34:57,259 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-05-01 07:34:58,640 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-05-01 07:35:00,116 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-01 07:35:01,683 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-05-01 07:35:03,546 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-05-01 07:35:05,273 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-05-01 07:35:07,392 WARN L205 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-05-01 07:35:09,210 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-05-01 07:35:10,632 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-05-01 07:35:12,138 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 07:35:13,551 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-05-01 07:35:15,100 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-05-01 07:35:16,863 WARN L205 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 07:35:18,595 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 07:35:20,439 WARN L205 SmtUtils]: Spent 912.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-05-01 07:35:22,266 WARN L205 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-05-01 07:35:24,249 WARN L205 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-05-01 07:35:26,296 WARN L205 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-05-01 07:35:28,447 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 163 [2021-05-01 07:35:30,497 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 167 [2021-05-01 07:35:32,776 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 171 [2021-05-01 07:35:34,957 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 175 [2021-05-01 07:35:36,983 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 179 [2021-05-01 07:35:38,885 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 183 [2021-05-01 07:35:40,659 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 187 [2021-05-01 07:35:42,302 WARN L205 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-05-01 07:35:43,810 WARN L205 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2021-05-01 07:35:45,659 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 199 [2021-05-01 07:35:47,312 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2021-05-01 07:35:49,072 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 207 [2021-05-01 07:35:50,987 WARN L205 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 73 [2021-05-01 07:35:52,495 WARN L205 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 78 [2021-05-01 07:35:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:35:53,785 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2021-05-01 07:35:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-01 07:35:53,793 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 1.065217391304348) internal successors, (49), 45 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 [2021-05-01 07:35:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:35:53,794 INFO L225 Difference]: With dead ends: 61 [2021-05-01 07:35:53,794 INFO L226 Difference]: Without dead ends: 55 [2021-05-01 07:35:53,794 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1187 ImplicationChecksByTransitivity, 107179.4ms TimeCoverageRelationStatistics Valid=290, Invalid=8266, Unknown=0, NotChecked=0, Total=8556 [2021-05-01 07:35:53,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-05-01 07:35:53,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-05-01 07:35:53,839 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) [2021-05-01 07:35:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-05-01 07:35:53,839 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2021-05-01 07:35:53,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:35:53,839 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-05-01 07:35:53,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 47 states, 46 states have (on average 1.065217391304348) internal successors, (49), 45 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) [2021-05-01 07:35:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-05-01 07:35:53,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-01 07:35:53,840 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:35:53,840 INFO L519 BasicCegarLoop]: trace histogram [40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:35:53,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-01 07:35:53,840 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:35:53,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:35:53,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1959736178, now seen corresponding path program 40 times [2021-05-01 07:35:53,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:35:53,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658403931] [2021-05-01 07:35:53,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:35:53,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:35:53,867 INFO L181 rdanLoopAcceleration]: Guard: Formula: (not (= v_main_~x~0_903 0)) InVars {main_~x~0=v_main_~x~0_903} OutVars{main_~x~0=v_main_~x~0_903} AuxVars[] AssignedVars[] [2021-05-01 07:35:53,870 WARN L240 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size [2021-05-01 07:35:53,873 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,882 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:35:53,890 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-05-01 07:35:53,892 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-05-01 07:35:53,901 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,913 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,925 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,934 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,947 INFO L118 tifierPushTermWalker]: treesize reduction 3, result has 25.0 percent of original size [2021-05-01 07:35:53,957 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,966 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,978 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,988 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:53,997 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:54,006 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:54,015 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:54,017 WARN L245 tifierPushTermWalker]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-05-01 07:35:54,150 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-05-01 07:35:54,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:54,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-05-01 07:35:54,157 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:35:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:35:54,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:54,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:35:54,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:54,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:35:54,187 INFO L142 QuantifierPusher]: treesize reduction 21, result has 12.5 percent of original size [2021-05-01 07:35:54,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:35:54,207 INFO L142 QuantifierPusher]: treesize reduction 74, result has 41.7 percent of original size [2021-05-01 07:35:54,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:35:54,386 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 13 [2021-05-01 07:35:54,391 INFO L142 QuantifierPusher]: treesize reduction 41, result has 64.7 percent of original size [2021-05-01 07:35:54,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-05-01 07:35:54,719 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 22 [2021-05-01 07:35:54,725 INFO L142 QuantifierPusher]: treesize reduction 26, result has 68.7 percent of original size [2021-05-01 07:35:54,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:35:54,909 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2021-05-01 07:35:54,913 INFO L142 QuantifierPusher]: treesize reduction 14, result has 46.2 percent of original size [2021-05-01 07:35:54,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-05-01 07:35:54,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:54,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:35:55,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:55,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:35:55,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:55,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:35:55,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:35:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:35:55,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:55,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:35:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:35:55,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:55,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:55,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:55,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:35:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-05-01 07:35:55,332 INFO L142 QuantifierPusher]: treesize reduction 17, result has 80.0 percent of original size [2021-05-01 07:35:55,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:55,335 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:55,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:55,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-05-01 07:35:55,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:55,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:55,472 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:55,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:55,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-05-01 07:35:55,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:55,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:55,637 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:55,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 07:35:55,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:55,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:55,811 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:55,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:55,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 07:35:56,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:56,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:56,005 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:56,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:56,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-05-01 07:35:56,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:56,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:56,227 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:56,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:56,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-05-01 07:35:56,477 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-05-01 07:35:56,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:56,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:56,486 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:56,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:56,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-05-01 07:35:56,771 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-05-01 07:35:56,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:56,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:56,780 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:56,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:56,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-05-01 07:35:57,080 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:35:57,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:35:57,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:35:57,090 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.7 percent of original size [2021-05-01 07:35:57,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-05-01 07:35:57,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110