/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 07:11:00,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 07:11:00,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 07:11:00,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 07:11:00,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 07:11:00,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 07:11:00,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 07:11:00,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 07:11:00,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 07:11:00,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 07:11:00,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 07:11:00,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 07:11:00,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 07:11:00,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 07:11:00,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 07:11:00,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 07:11:00,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 07:11:00,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 07:11:00,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 07:11:00,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 07:11:00,859 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 07:11:00,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 07:11:00,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 07:11:00,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 07:11:00,869 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 07:11:00,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 07:11:00,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 07:11:00,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 07:11:00,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 07:11:00,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 07:11:00,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 07:11:00,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 07:11:00,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 07:11:00,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 07:11:00,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 07:11:00,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 07:11:00,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 07:11:00,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 07:11:00,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 07:11:00,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 07:11:00,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 07:11:00,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 07:11:00,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 07:11:00,872 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 07:11:00,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 07:11:01,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 07:11:01,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 07:11:01,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 07:11:01,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 07:11:01,163 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 07:11:01,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2021-05-01 07:11:01,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee292ab6/422aa8946d9e4e5ab659e264fbc7f3ec/FLAGeb650da16 [2021-05-01 07:11:01,618 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 07:11:01,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2021-05-01 07:11:01,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee292ab6/422aa8946d9e4e5ab659e264fbc7f3ec/FLAGeb650da16 [2021-05-01 07:11:02,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aee292ab6/422aa8946d9e4e5ab659e264fbc7f3ec [2021-05-01 07:11:02,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 07:11:02,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 07:11:02,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 07:11:02,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 07:11:02,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 07:11:02,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3772c346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02, skipping insertion in model container [2021-05-01 07:11:02,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 07:11:02,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 07:11:02,169 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/cggmp2005_variant.i[895,908] [2021-05-01 07:11:02,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:11:02,187 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 07:11:02,201 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/cggmp2005_variant.i[895,908] [2021-05-01 07:11:02,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 07:11:02,224 INFO L208 MainTranslator]: Completed translation [2021-05-01 07:11:02,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02 WrapperNode [2021-05-01 07:11:02,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 07:11:02,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 07:11:02,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 07:11:02,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 07:11:02,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (1/1) ... [2021-05-01 07:11:02,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 07:11:02,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 07:11:02,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 07:11:02,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 07:11:02,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (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 07:11:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 07:11:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 07:11:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 07:11:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 07:11:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 07:11:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 07:11:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 07:11:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 07:11:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 07:11:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 07:11:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 07:11:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 07:11:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 07:11:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 07:11:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 07:11:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 07:11:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 07:11:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 07:11:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 07:11:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 07:11:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 07:11:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 07:11:02,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 07:11:02,655 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 07:11:02,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:11:02 BoogieIcfgContainer [2021-05-01 07:11:02,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 07:11:02,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 07:11:02,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 07:11:02,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 07:11:02,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 07:11:02" (1/3) ... [2021-05-01 07:11:02,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bb94ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:11:02, skipping insertion in model container [2021-05-01 07:11:02,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:11:02" (2/3) ... [2021-05-01 07:11:02,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bb94ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:11:02, skipping insertion in model container [2021-05-01 07:11:02,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:11:02" (3/3) ... [2021-05-01 07:11:02,663 INFO L111 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2021-05-01 07:11:02,667 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 07:11:02,671 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 07:11:02,685 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 07:11:02,701 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 07:11:02,702 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 07:11:02,702 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 07:11:02,702 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 07:11:02,702 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 07:11:02,702 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 07:11:02,702 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 07:11:02,702 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 07:11:02,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 07:11:02,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 07:11:02,718 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:02,718 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:02,718 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:02,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:02,723 INFO L82 PathProgramCache]: Analyzing trace with hash 253912119, now seen corresponding path program 1 times [2021-05-01 07:11:02,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:02,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576160402] [2021-05-01 07:11:02,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:02,777 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 07:11:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:02,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:02,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:02,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:02,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:02,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:02,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:02,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:02,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:02,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:02,976 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 07:11:02,977 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:02,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576160402] [2021-05-01 07:11:02,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1576160402] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:02,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:02,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 07:11:02,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657284791] [2021-05-01 07:11:02,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 07:11:02,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:02,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 07:11:02,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 07:11:03,000 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:03,121 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-05-01 07:11:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 07:11:03,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-05-01 07:11:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:03,128 INFO L225 Difference]: With dead ends: 33 [2021-05-01 07:11:03,128 INFO L226 Difference]: Without dead ends: 14 [2021-05-01 07:11:03,131 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 07:11:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-01 07:11:03,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-01 07:11:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:03,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-01 07:11:03,192 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-05-01 07:11:03,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:03,192 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-01 07:11:03,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:03,193 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-01 07:11:03,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-01 07:11:03,193 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:03,193 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:03,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 07:11:03,194 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:03,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:03,195 INFO L82 PathProgramCache]: Analyzing trace with hash -684163825, now seen corresponding path program 1 times [2021-05-01 07:11:03,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:03,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167542682] [2021-05-01 07:11:03,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:03,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:03,256 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_10) InVars {main_~mid~0=v_main_~mid~0_10} OutVars{main_~mid~0=v_main_~mid~0_10} AuxVars[] AssignedVars[] [2021-05-01 07:11:03,272 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:03,277 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,280 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,283 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,287 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,290 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,292 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,302 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:03,317 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,320 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:03,335 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:03,339 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,342 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,344 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,347 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,358 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,360 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:03,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:03,399 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:03,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:03,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:03,479 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:03,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:03,502 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-05-01 07:11:03,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:03,529 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:03,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:03,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:03,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:03,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:03,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:03,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:03,595 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 07:11:03,600 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:03,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:03,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:11:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:11:03,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:03,645 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:03,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:03,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:03,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:03,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:03,676 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:03,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167542682] [2021-05-01 07:11:03,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1167542682] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:03,677 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:03,677 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 07:11:03,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585395016] [2021-05-01 07:11:03,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 07:11:03,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:03,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 07:11:03,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-05-01 07:11:03,679 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:03,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:03,989 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-05-01 07:11:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-01 07:11:03,990 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-05-01 07:11:03,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:03,991 INFO L225 Difference]: With dead ends: 20 [2021-05-01 07:11:03,991 INFO L226 Difference]: Without dead ends: 15 [2021-05-01 07:11:03,993 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 357.8ms TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2021-05-01 07:11:03,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-01 07:11:04,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-01 07:11:04,006 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 07:11:04,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-05-01 07:11:04,007 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2021-05-01 07:11:04,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:04,007 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-05-01 07:11:04,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:04,007 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-05-01 07:11:04,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-01 07:11:04,008 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:04,008 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:04,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 07:11:04,008 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:04,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:04,009 INFO L82 PathProgramCache]: Analyzing trace with hash 300252983, now seen corresponding path program 2 times [2021-05-01 07:11:04,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:04,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990059072] [2021-05-01 07:11:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:04,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:04,026 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_14) InVars {main_~mid~0=v_main_~mid~0_14} OutVars{main_~mid~0=v_main_~mid~0_14} AuxVars[] AssignedVars[] [2021-05-01 07:11:04,041 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:04,048 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,051 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,054 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,056 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,059 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,061 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,066 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:04,068 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,069 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:04,072 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:04,077 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,079 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,081 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,084 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,086 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,087 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:04,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:04,108 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:04,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:04,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:04,195 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:04,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:04,213 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:04,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:04,223 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:04,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:04,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:04,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:04,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:04,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:04,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:04,287 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 07:11:04,290 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:04,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:04,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:11:04,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:04,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:04,346 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:04,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:04,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:04,375 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:04,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:04,386 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:04,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:04,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:04,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:04,424 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:04,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990059072] [2021-05-01 07:11:04,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1990059072] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:04,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:04,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-01 07:11:04,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060959449] [2021-05-01 07:11:04,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-01 07:11:04,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:04,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-01 07:11:04,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-05-01 07:11:04,429 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:04,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:04,834 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-05-01 07:11:04,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-01 07:11:04,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-05-01 07:11:04,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:04,835 INFO L225 Difference]: With dead ends: 21 [2021-05-01 07:11:04,835 INFO L226 Difference]: Without dead ends: 16 [2021-05-01 07:11:04,836 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 422.0ms TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-05-01 07:11:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-05-01 07:11:04,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-05-01 07:11:04,840 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 07:11:04,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-05-01 07:11:04,841 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2021-05-01 07:11:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:04,841 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-05-01 07:11:04,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-05-01 07:11:04,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-05-01 07:11:04,842 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:04,842 INFO L519 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:04,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 07:11:04,842 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:04,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:04,842 INFO L82 PathProgramCache]: Analyzing trace with hash 752402959, now seen corresponding path program 3 times [2021-05-01 07:11:04,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:04,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136029874] [2021-05-01 07:11:04,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:04,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:04,855 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_19) InVars {main_~mid~0=v_main_~mid~0_19} OutVars{main_~mid~0=v_main_~mid~0_19} AuxVars[] AssignedVars[] [2021-05-01 07:11:04,859 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:04,861 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,866 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:04,868 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,869 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:04,871 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:04,876 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,879 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,882 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,885 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,887 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,890 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,893 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,896 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,898 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,901 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,902 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:04,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:04,923 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:04,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:04,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:04,952 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:04,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:04,964 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:11:04,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:04,990 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:04,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:04,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:04,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:05,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:05,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:05,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:05,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:05,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:05,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:05,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:05,050 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 07:11:05,053 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-05-01 07:11:05,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:05,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:05,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:05,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:05,094 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-05-01 07:11:05,097 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:05,120 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:05,123 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:05,352 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:05,353 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:05,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:05,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:05,387 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:05,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136029874] [2021-05-01 07:11:05,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2136029874] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:05,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:05,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-01 07:11:05,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803451281] [2021-05-01 07:11:05,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-01 07:11:05,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:05,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-01 07:11:05,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=124, Unknown=1, NotChecked=0, Total=156 [2021-05-01 07:11:05,389 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:06,894 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-05-01 07:11:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-01 07:11:06,894 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-05-01 07:11:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:06,895 INFO L225 Difference]: With dead ends: 22 [2021-05-01 07:11:06,895 INFO L226 Difference]: Without dead ends: 17 [2021-05-01 07:11:06,896 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1072.4ms TimeCoverageRelationStatistics Valid=75, Invalid=342, Unknown=3, NotChecked=0, Total=420 [2021-05-01 07:11:06,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-01 07:11:06,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-01 07:11:06,900 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 07:11:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-05-01 07:11:06,901 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2021-05-01 07:11:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:06,901 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-05-01 07:11:06,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:06,901 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-05-01 07:11:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-01 07:11:06,902 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:06,902 INFO L519 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:06,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-01 07:11:06,902 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:06,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:06,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1884150327, now seen corresponding path program 4 times [2021-05-01 07:11:06,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:06,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902812220] [2021-05-01 07:11:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:06,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:06,914 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_25) InVars {main_~mid~0=v_main_~mid~0_25} OutVars{main_~mid~0=v_main_~mid~0_25} AuxVars[] AssignedVars[] [2021-05-01 07:11:06,918 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:06,919 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,922 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,925 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:06,926 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:06,928 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:06,931 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,933 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,936 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,938 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,941 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,946 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,948 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,950 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,952 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,953 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,954 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:06,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:06,973 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:06,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:06,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:06,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:06,998 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:06,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:07,007 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:11:07,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:07,026 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:07,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:07,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:07,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:07,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:07,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:07,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:07,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:07,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:07,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:07,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:07,099 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 07:11:07,101 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-05-01 07:11:07,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:07,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:07,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:07,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:07,126 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-05-01 07:11:07,127 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:07,144 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:07,146 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:07,389 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:07,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:07,414 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:07,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:07,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:07,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:07,439 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:07,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902812220] [2021-05-01 07:11:07,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [902812220] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:07,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:07,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-01 07:11:07,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051828139] [2021-05-01 07:11:07,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-01 07:11:07,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:07,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-01 07:11:07,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=147, Unknown=1, NotChecked=0, Total=182 [2021-05-01 07:11:07,440 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:08,584 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-05-01 07:11:08,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-01 07:11:08,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-05-01 07:11:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:08,585 INFO L225 Difference]: With dead ends: 23 [2021-05-01 07:11:08,585 INFO L226 Difference]: Without dead ends: 18 [2021-05-01 07:11:08,590 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1155.2ms TimeCoverageRelationStatistics Valid=83, Invalid=421, Unknown=2, NotChecked=0, Total=506 [2021-05-01 07:11:08,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-05-01 07:11:08,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-05-01 07:11:08,600 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 07:11:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-05-01 07:11:08,601 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2021-05-01 07:11:08,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:08,601 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-05-01 07:11:08,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:08,601 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-05-01 07:11:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 07:11:08,602 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:08,602 INFO L519 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:08,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-01 07:11:08,602 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:08,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:08,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1686386929, now seen corresponding path program 5 times [2021-05-01 07:11:08,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:08,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814437584] [2021-05-01 07:11:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:08,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:08,610 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_32) InVars {main_~mid~0=v_main_~mid~0_32} OutVars{main_~mid~0=v_main_~mid~0_32} AuxVars[] AssignedVars[] [2021-05-01 07:11:08,613 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:08,615 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,618 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:08,621 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,621 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:08,624 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:08,627 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,629 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,632 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,634 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,637 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,640 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,642 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,644 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,646 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,648 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,650 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:08,666 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:08,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:08,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:08,693 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:08,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:08,702 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:08,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:08,712 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:08,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:08,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:08,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:08,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:08,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:08,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:08,759 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 07:11:08,761 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:08,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:08,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:11:08,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:11:08,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:08,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:08,803 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:08,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:08,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:08,828 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:08,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:08,833 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:08,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:08,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:08,860 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:08,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:08,880 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:08,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:08,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:08,913 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:08,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:08,920 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:08,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:08,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:08,955 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:08,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:08,960 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:08,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:08,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:09,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:09,002 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:09,002 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814437584] [2021-05-01 07:11:09,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1814437584] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:09,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:09,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-01 07:11:09,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814729913] [2021-05-01 07:11:09,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-01 07:11:09,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:09,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-01 07:11:09,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-05-01 07:11:09,004 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:09,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:09,551 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-05-01 07:11:09,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-01 07:11:09,552 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-05-01 07:11:09,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:09,552 INFO L225 Difference]: With dead ends: 24 [2021-05-01 07:11:09,552 INFO L226 Difference]: Without dead ends: 19 [2021-05-01 07:11:09,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 583.2ms TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2021-05-01 07:11:09,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-05-01 07:11:09,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-05-01 07:11:09,558 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 07:11:09,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-05-01 07:11:09,558 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2021-05-01 07:11:09,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:09,559 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-05-01 07:11:09,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-05-01 07:11:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-01 07:11:09,559 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:09,559 INFO L519 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:09,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-01 07:11:09,560 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:09,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:09,560 INFO L82 PathProgramCache]: Analyzing trace with hash -703892169, now seen corresponding path program 6 times [2021-05-01 07:11:09,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:09,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640136514] [2021-05-01 07:11:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:09,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:09,570 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_40) InVars {main_~mid~0=v_main_~mid~0_40} OutVars{main_~mid~0=v_main_~mid~0_40} AuxVars[] AssignedVars[] [2021-05-01 07:11:09,573 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:09,575 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,578 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,580 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:09,581 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:09,584 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,586 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,588 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,589 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,591 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:09,594 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,596 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,598 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,600 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,602 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,604 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,604 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:09,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:09,622 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:09,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:09,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:09,643 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:09,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:09,652 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:11:09,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:09,669 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:09,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:09,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:09,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:09,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:09,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:09,714 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 07:11:09,716 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-05-01 07:11:09,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:09,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:09,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 07:11:09,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:11:09,740 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-05-01 07:11:09,741 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:09,757 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:09,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:10,026 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:10,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:10,052 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:10,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:10,074 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:10,079 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:10,103 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:10,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:10,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:10,129 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:10,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640136514] [2021-05-01 07:11:10,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [640136514] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:10,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:10,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-05-01 07:11:10,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063968910] [2021-05-01 07:11:10,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-01 07:11:10,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:10,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-01 07:11:10,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=199, Unknown=1, NotChecked=0, Total=240 [2021-05-01 07:11:10,131 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:10,584 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2021-05-01 07:11:10,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-01 07:11:10,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-05-01 07:11:10,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:10,585 INFO L225 Difference]: With dead ends: 25 [2021-05-01 07:11:10,585 INFO L226 Difference]: Without dead ends: 20 [2021-05-01 07:11:10,586 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 767.3ms TimeCoverageRelationStatistics Valid=100, Invalid=601, Unknown=1, NotChecked=0, Total=702 [2021-05-01 07:11:10,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-05-01 07:11:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-05-01 07:11:10,590 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 07:11:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-05-01 07:11:10,591 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2021-05-01 07:11:10,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:10,591 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-05-01 07:11:10,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-05-01 07:11:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-05-01 07:11:10,592 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:10,592 INFO L519 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:10,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-01 07:11:10,592 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:10,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:10,593 INFO L82 PathProgramCache]: Analyzing trace with hash -311325681, now seen corresponding path program 7 times [2021-05-01 07:11:10,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:10,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285169665] [2021-05-01 07:11:10,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:10,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:10,599 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_49) InVars {main_~mid~0=v_main_~mid~0_49} OutVars{main_~mid~0=v_main_~mid~0_49} AuxVars[] AssignedVars[] [2021-05-01 07:11:10,602 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:10,605 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,607 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,609 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,611 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,613 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,614 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,617 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,620 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:10,620 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:10,626 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,628 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,630 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,632 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:10,634 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,637 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,637 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:10,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:10,655 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:10,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:10,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:10,674 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:10,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:10,683 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:10,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:10,692 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:10,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:10,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:10,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:10,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:10,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:10,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:10,735 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 07:11:10,736 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:11:10,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:10,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:11:10,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:11:10,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:10,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:10,764 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:10,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:10,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:10,802 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:10,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:10,805 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:10,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:10,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:10,833 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:10,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:10,837 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:10,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:10,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:10,869 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:10,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:10,873 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:10,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:10,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:10,908 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:10,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:10,911 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:10,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:10,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:10,950 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:10,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:10,953 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:10,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:10,994 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:10,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:10,997 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:10,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:10,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:11,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:11,038 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:11,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285169665] [2021-05-01 07:11:11,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1285169665] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:11,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:11,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-01 07:11:11,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643916042] [2021-05-01 07:11:11,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-01 07:11:11,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:11,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-01 07:11:11,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-05-01 07:11:11,039 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:11,720 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-05-01 07:11:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-01 07:11:11,721 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-05-01 07:11:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:11,722 INFO L225 Difference]: With dead ends: 26 [2021-05-01 07:11:11,722 INFO L226 Difference]: Without dead ends: 21 [2021-05-01 07:11:11,722 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 755.9ms TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2021-05-01 07:11:11,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-05-01 07:11:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-05-01 07:11:11,728 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 07:11:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-05-01 07:11:11,729 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2021-05-01 07:11:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:11,729 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-05-01 07:11:11,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-05-01 07:11:11,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-01 07:11:11,730 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:11,730 INFO L519 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:11,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-01 07:11:11,730 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:11,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:11,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1026666441, now seen corresponding path program 8 times [2021-05-01 07:11:11,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:11,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309364648] [2021-05-01 07:11:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:11,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:11,746 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_59) InVars {main_~mid~0=v_main_~mid~0_59} OutVars{main_~mid~0=v_main_~mid~0_59} AuxVars[] AssignedVars[] [2021-05-01 07:11:11,757 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:11,758 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,761 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:11,763 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,764 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:11,766 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:11,769 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,771 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,774 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,776 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,778 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,780 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,782 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,784 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,786 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,788 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,788 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:11,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:11,806 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:11,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:11,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:11,825 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:11,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:11,834 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:11,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:11,843 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:11,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:11,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:11,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:11,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:11,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:11,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:11,885 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 07:11:11,886 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:11,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:11,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:11:11,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:11:11,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:11,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:11,912 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:11,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:11,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:11,936 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:11,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:11,940 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:11,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:11,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:11,970 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:11,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:11,973 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:11,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:11,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:12,005 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:12,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:12,008 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:12,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:12,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:12,042 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:12,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:12,044 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:12,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:12,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:12,081 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:12,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:12,084 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:12,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:12,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:12,118 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:12,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:12,125 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:12,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:12,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:12,164 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:12,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:12,168 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:12,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:12,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:12,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:12,216 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:12,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309364648] [2021-05-01 07:11:12,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [309364648] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:12,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:12,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-01 07:11:12,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536102454] [2021-05-01 07:11:12,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-01 07:11:12,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:12,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-01 07:11:12,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-05-01 07:11:12,218 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:12,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:12,935 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2021-05-01 07:11:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-01 07:11:12,936 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-05-01 07:11:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:12,936 INFO L225 Difference]: With dead ends: 27 [2021-05-01 07:11:12,936 INFO L226 Difference]: Without dead ends: 22 [2021-05-01 07:11:12,937 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 811.4ms TimeCoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2021-05-01 07:11:12,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-05-01 07:11:12,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-05-01 07:11:12,943 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 07:11:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-05-01 07:11:12,944 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2021-05-01 07:11:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:12,944 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-05-01 07:11:12,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-05-01 07:11:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-05-01 07:11:12,945 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:12,945 INFO L519 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:12,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-01 07:11:12,945 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:12,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:12,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1727393521, now seen corresponding path program 9 times [2021-05-01 07:11:12,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:12,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336629916] [2021-05-01 07:11:12,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:12,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:12,953 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_70) InVars {main_~mid~0=v_main_~mid~0_70} OutVars{main_~mid~0=v_main_~mid~0_70} AuxVars[] AssignedVars[] [2021-05-01 07:11:12,955 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:12,956 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,959 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,962 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:12,962 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:12,965 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,967 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:12,968 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,970 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,972 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,974 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,976 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,977 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,979 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,980 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,982 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,983 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:12,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:12,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:12,998 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:13,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:13,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:13,018 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:13,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:13,028 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:13,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:13,037 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:13,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:13,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:13,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:13,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:13,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:13,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:13,076 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 07:11:13,077 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:11:13,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:13,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:13,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,105 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,127 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:13,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,131 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,164 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:13,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,170 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,198 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:13,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,203 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,236 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:13,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,239 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,287 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:13,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,289 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,325 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:13,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,336 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,380 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:13,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,383 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,459 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:13,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:13,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:13,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:13,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:13,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:13,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:13,507 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:13,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336629916] [2021-05-01 07:11:13,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [336629916] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:13,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:13,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-01 07:11:13,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664702203] [2021-05-01 07:11:13,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-01 07:11:13,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:13,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-01 07:11:13,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-05-01 07:11:13,509 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:14,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:14,381 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-05-01 07:11:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-01 07:11:14,382 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2021-05-01 07:11:14,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:14,382 INFO L225 Difference]: With dead ends: 28 [2021-05-01 07:11:14,382 INFO L226 Difference]: Without dead ends: 23 [2021-05-01 07:11:14,383 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 895.7ms TimeCoverageRelationStatistics Valid=124, Invalid=932, Unknown=0, NotChecked=0, Total=1056 [2021-05-01 07:11:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-01 07:11:14,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-05-01 07:11:14,390 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 07:11:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-05-01 07:11:14,390 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2021-05-01 07:11:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:14,390 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2021-05-01 07:11:14,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-05-01 07:11:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-01 07:11:14,391 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:14,391 INFO L519 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:14,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-01 07:11:14,391 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:14,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:14,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1975096521, now seen corresponding path program 10 times [2021-05-01 07:11:14,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:14,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973290135] [2021-05-01 07:11:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:14,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:14,401 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_82) InVars {main_~mid~0=v_main_~mid~0_82} OutVars{main_~mid~0=v_main_~mid~0_82} AuxVars[] AssignedVars[] [2021-05-01 07:11:14,403 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:14,407 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,409 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,411 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,413 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,414 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,415 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,418 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,421 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:14,421 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:14,423 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:14,426 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,428 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,431 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,433 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,435 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,436 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:14,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:14,454 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:14,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:14,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:14,493 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:14,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:14,502 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:14,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:14,512 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:14,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:14,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:14,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:14,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:14,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:14,559 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 07:11:14,560 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:14,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:11:14,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:14,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:14,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,592 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,644 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,647 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,679 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,684 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,716 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,718 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,750 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,753 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,786 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,793 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,828 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,830 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,870 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,871 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,913 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,915 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:14,960 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:14,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:14,972 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:14,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:14,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:15,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:15,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:15,036 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:15,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973290135] [2021-05-01 07:11:15,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1973290135] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:15,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:15,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-01 07:11:15,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995984520] [2021-05-01 07:11:15,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-01 07:11:15,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:15,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-01 07:11:15,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-05-01 07:11:15,038 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:15,998 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2021-05-01 07:11:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-01 07:11:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-05-01 07:11:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:15,999 INFO L225 Difference]: With dead ends: 29 [2021-05-01 07:11:15,999 INFO L226 Difference]: Without dead ends: 24 [2021-05-01 07:11:16,000 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1069.9ms TimeCoverageRelationStatistics Valid=132, Invalid=1058, Unknown=0, NotChecked=0, Total=1190 [2021-05-01 07:11:16,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-01 07:11:16,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-05-01 07:11:16,007 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 07:11:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-05-01 07:11:16,008 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2021-05-01 07:11:16,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:16,008 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-05-01 07:11:16,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:16,008 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-05-01 07:11:16,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-01 07:11:16,009 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:16,009 INFO L519 BasicCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:16,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-01 07:11:16,009 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:16,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:16,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1063954929, now seen corresponding path program 11 times [2021-05-01 07:11:16,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:16,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735540931] [2021-05-01 07:11:16,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:16,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:16,021 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_95) InVars {main_~mid~0=v_main_~mid~0_95} OutVars{main_~mid~0=v_main_~mid~0_95} AuxVars[] AssignedVars[] [2021-05-01 07:11:16,023 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:16,026 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,029 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,031 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,034 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,036 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,037 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,040 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,043 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:16,044 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:16,047 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,049 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:16,052 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,054 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,056 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,058 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,059 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:16,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:16,076 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:16,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:16,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:16,117 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:16,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:16,127 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:11:16,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:16,144 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:16,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:16,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:16,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:16,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:16,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:16,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:16,187 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 07:11:16,188 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-05-01 07:11:16,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:16,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 07:11:16,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:11:16,211 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-05-01 07:11:16,212 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:16,230 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,232 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:16,444 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,444 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:16,465 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:16,483 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:16,504 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:16,524 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:16,545 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:16,566 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:16,590 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:16,613 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:16,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:16,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:16,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:16,637 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:16,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735540931] [2021-05-01 07:11:16,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1735540931] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:16,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:16,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-01 07:11:16,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125870743] [2021-05-01 07:11:16,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-01 07:11:16,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:16,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-01 07:11:16,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=364, Unknown=1, NotChecked=0, Total=420 [2021-05-01 07:11:16,639 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:17,295 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-05-01 07:11:17,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-01 07:11:17,296 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-05-01 07:11:17,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:17,296 INFO L225 Difference]: With dead ends: 30 [2021-05-01 07:11:17,296 INFO L226 Difference]: Without dead ends: 25 [2021-05-01 07:11:17,297 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 962.0ms TimeCoverageRelationStatistics Valid=140, Invalid=1191, Unknown=1, NotChecked=0, Total=1332 [2021-05-01 07:11:17,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-05-01 07:11:17,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-05-01 07:11:17,303 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 07:11:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-05-01 07:11:17,303 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2021-05-01 07:11:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:17,303 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-05-01 07:11:17,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-05-01 07:11:17,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-01 07:11:17,304 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:17,304 INFO L519 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:17,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-01 07:11:17,304 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:17,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:17,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1411630647, now seen corresponding path program 12 times [2021-05-01 07:11:17,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:17,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621964524] [2021-05-01 07:11:17,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:17,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:17,319 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_109) InVars {main_~mid~0=v_main_~mid~0_109} OutVars{main_~mid~0=v_main_~mid~0_109} AuxVars[] AssignedVars[] [2021-05-01 07:11:17,321 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:17,323 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,325 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,327 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,329 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,331 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,332 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,334 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,337 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:17,337 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:17,340 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:17,342 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,344 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,346 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,348 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,350 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,351 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:17,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,368 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:17,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:17,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:17,394 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:17,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:17,404 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:17,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:17,411 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:17,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:17,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:17,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:17,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:17,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:17,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:17,466 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 07:11:17,467 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:17,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:11:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:11:17,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,503 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,525 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,528 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,559 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,590 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,592 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,621 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,623 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,654 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,656 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,689 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,691 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,734 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,736 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,772 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,774 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,816 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,819 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,861 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,862 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,910 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:17,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:17,912 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:17,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:17,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:17,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:17,973 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:17,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621964524] [2021-05-01 07:11:17,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [621964524] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:17,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:17,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-01 07:11:17,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27824704] [2021-05-01 07:11:17,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-01 07:11:17,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:17,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-01 07:11:17,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-05-01 07:11:17,974 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:19,095 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-05-01 07:11:19,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-01 07:11:19,097 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-05-01 07:11:19,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:19,097 INFO L225 Difference]: With dead ends: 31 [2021-05-01 07:11:19,097 INFO L226 Difference]: Without dead ends: 26 [2021-05-01 07:11:19,098 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1211.5ms TimeCoverageRelationStatistics Valid=148, Invalid=1334, Unknown=0, NotChecked=0, Total=1482 [2021-05-01 07:11:19,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-05-01 07:11:19,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-05-01 07:11:19,107 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 07:11:19,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-05-01 07:11:19,107 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2021-05-01 07:11:19,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:19,107 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-05-01 07:11:19,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-05-01 07:11:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-01 07:11:19,108 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:19,108 INFO L519 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:19,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-01 07:11:19,108 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:19,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:19,109 INFO L82 PathProgramCache]: Analyzing trace with hash 845372175, now seen corresponding path program 13 times [2021-05-01 07:11:19,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:19,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103535759] [2021-05-01 07:11:19,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:19,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:19,122 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_124) InVars {main_~mid~0=v_main_~mid~0_124} OutVars{main_~mid~0=v_main_~mid~0_124} AuxVars[] AssignedVars[] [2021-05-01 07:11:19,124 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:19,126 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,128 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,131 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,132 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,134 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,135 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,138 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:19,140 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,140 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:19,143 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,145 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,147 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:19,149 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,150 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,152 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,153 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:19,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:19,170 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:19,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:19,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:19,200 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:19,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:19,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-05-01 07:11:19,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:19,225 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-05-01 07:11:19,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:19,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:19,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:19,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:19,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:19,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:19,265 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 07:11:19,266 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:11:19,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:19,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:19,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,292 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,317 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,319 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,345 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,347 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,376 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,378 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,407 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,409 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,441 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,457 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,499 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,502 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,549 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,551 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,607 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,657 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,659 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,706 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,707 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,755 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,757 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,813 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:19,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:19,824 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:19,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:19,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:19,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:19,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:19,879 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:19,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103535759] [2021-05-01 07:11:19,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [103535759] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:19,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:19,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-05-01 07:11:19,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133271587] [2021-05-01 07:11:19,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-01 07:11:19,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:19,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-01 07:11:19,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-05-01 07:11:19,881 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:21,073 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2021-05-01 07:11:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-01 07:11:21,074 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.05) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-05-01 07:11:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:21,074 INFO L225 Difference]: With dead ends: 32 [2021-05-01 07:11:21,074 INFO L226 Difference]: Without dead ends: 27 [2021-05-01 07:11:21,075 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1357.0ms TimeCoverageRelationStatistics Valid=156, Invalid=1484, Unknown=0, NotChecked=0, Total=1640 [2021-05-01 07:11:21,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-05-01 07:11:21,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-05-01 07:11:21,086 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 07:11:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-05-01 07:11:21,087 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2021-05-01 07:11:21,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:21,087 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-05-01 07:11:21,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 20 states have (on average 1.05) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:21,087 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-05-01 07:11:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-01 07:11:21,088 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:21,088 INFO L519 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:21,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-01 07:11:21,088 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:21,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:21,089 INFO L82 PathProgramCache]: Analyzing trace with hash 471228727, now seen corresponding path program 14 times [2021-05-01 07:11:21,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:21,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499406628] [2021-05-01 07:11:21,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:21,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:21,095 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_140) InVars {main_~mid~0=v_main_~mid~0_140} OutVars{main_~mid~0=v_main_~mid~0_140} AuxVars[] AssignedVars[] [2021-05-01 07:11:21,097 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:21,098 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,102 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:21,104 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,105 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:21,107 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:21,110 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,113 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,116 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,118 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,121 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,123 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,126 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,128 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,130 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,132 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,133 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:21,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,151 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:21,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:21,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:21,167 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:21,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:21,177 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:21,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:21,188 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:21,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:21,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:21,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:21,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:21,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:21,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:21,234 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 07:11:21,235 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:21,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:11:21,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:11:21,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,263 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,297 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,300 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,333 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,335 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,370 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,372 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,407 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,409 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,445 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,446 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,479 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,480 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,523 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,524 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,578 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,580 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,636 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,638 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,698 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,701 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,757 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,759 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,808 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,809 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,862 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:11:21,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:21,864 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:11:21,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:21,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:11:21,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:21,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:21,919 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:21,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499406628] [2021-05-01 07:11:21,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1499406628] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:21,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:21,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-01 07:11:21,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77233115] [2021-05-01 07:11:21,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-01 07:11:21,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:21,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-01 07:11:21,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-05-01 07:11:21,920 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:23,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:23,186 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-05-01 07:11:23,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-01 07:11:23,187 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-05-01 07:11:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:23,187 INFO L225 Difference]: With dead ends: 33 [2021-05-01 07:11:23,187 INFO L226 Difference]: Without dead ends: 28 [2021-05-01 07:11:23,188 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1470.8ms TimeCoverageRelationStatistics Valid=164, Invalid=1642, Unknown=0, NotChecked=0, Total=1806 [2021-05-01 07:11:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-05-01 07:11:23,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-05-01 07:11:23,197 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 07:11:23,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2021-05-01 07:11:23,197 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2021-05-01 07:11:23,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:23,198 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2021-05-01 07:11:23,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2021-05-01 07:11:23,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-05-01 07:11:23,198 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:23,198 INFO L519 BasicCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:23,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-01 07:11:23,199 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:23,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:23,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1757683727, now seen corresponding path program 15 times [2021-05-01 07:11:23,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:23,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543936386] [2021-05-01 07:11:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:23,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:23,204 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_157) InVars {main_~mid~0=v_main_~mid~0_157} OutVars{main_~mid~0=v_main_~mid~0_157} AuxVars[] AssignedVars[] [2021-05-01 07:11:23,205 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:23,217 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,226 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:23,228 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,229 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:23,231 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:23,235 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,237 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,240 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,242 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,245 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,247 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,249 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,251 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,253 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,256 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,256 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:23,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:23,277 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:23,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:23,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:23,310 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:23,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:23,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-05-01 07:11:23,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:23,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-05-01 07:11:23,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:23,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:23,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:23,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:23,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:23,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:23,370 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 07:11:23,371 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:23,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:11:23,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:23,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:23,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,394 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,416 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,418 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,441 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,445 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,471 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,474 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,506 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,516 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,561 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,563 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,607 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,613 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,653 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,655 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,700 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,702 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,752 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,754 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,811 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,813 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,866 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,868 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,921 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,923 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:23,978 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:23,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:23,980 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:23,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:23,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:24,039 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:24,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:24,041 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:24,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:24,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:24,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:24,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:24,105 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:24,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543936386] [2021-05-01 07:11:24,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [543936386] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:24,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:24,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-05-01 07:11:24,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897109497] [2021-05-01 07:11:24,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-01 07:11:24,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:24,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-01 07:11:24,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-05-01 07:11:24,106 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:25,557 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-05-01 07:11:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-01 07:11:25,558 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-05-01 07:11:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:25,558 INFO L225 Difference]: With dead ends: 34 [2021-05-01 07:11:25,558 INFO L226 Difference]: Without dead ends: 29 [2021-05-01 07:11:25,559 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1622.3ms TimeCoverageRelationStatistics Valid=172, Invalid=1808, Unknown=0, NotChecked=0, Total=1980 [2021-05-01 07:11:25,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-01 07:11:25,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-05-01 07:11:25,569 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 07:11:25,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-05-01 07:11:25,570 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2021-05-01 07:11:25,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:25,570 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-05-01 07:11:25,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-05-01 07:11:25,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-01 07:11:25,571 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:25,571 INFO L519 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:25,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-01 07:11:25,571 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:25,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:25,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1311884233, now seen corresponding path program 16 times [2021-05-01 07:11:25,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:25,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143380143] [2021-05-01 07:11:25,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:25,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:25,580 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_175) InVars {main_~mid~0=v_main_~mid~0_175} OutVars{main_~mid~0=v_main_~mid~0_175} AuxVars[] AssignedVars[] [2021-05-01 07:11:25,583 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:25,585 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,587 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,588 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,590 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,593 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,594 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,596 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,599 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:25,599 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:25,601 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:25,604 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,606 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,608 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,610 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,613 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,613 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:25,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:25,631 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:25,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:25,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:25,646 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:25,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:25,655 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:25,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:25,664 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:25,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:25,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:25,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:25,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:25,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:25,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:25,710 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 07:11:25,711 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:25,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:11:25,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:25,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:25,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,737 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:25,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:25,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:25,762 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:25,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,764 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:25,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:25,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:25,790 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:25,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,792 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:25,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:25,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:25,820 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:25,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,821 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:25,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:25,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:25,851 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:25,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,855 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:25,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:25,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:25,888 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:25,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,889 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:25,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:25,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:25,926 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:25,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,927 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:25,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:25,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:25,975 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:25,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:25,976 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:25,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:25,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,016 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:26,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:26,018 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:26,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:26,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,065 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:26,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:26,067 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:26,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:26,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,113 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:26,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:26,115 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:26,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:26,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,164 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:26,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:26,166 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:26,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:26,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,227 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:26,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:26,233 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:26,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:26,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,293 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:26,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:26,295 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:26,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:26,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,357 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:26,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:26,369 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:26,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:26,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,451 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:26,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:26,453 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:26,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:26,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:26,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:26,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:26,537 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:26,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143380143] [2021-05-01 07:11:26,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [143380143] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:26,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:26,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-01 07:11:26,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112859835] [2021-05-01 07:11:26,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-01 07:11:26,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:26,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-01 07:11:26,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2021-05-01 07:11:26,539 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:28,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:28,129 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-05-01 07:11:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-01 07:11:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-05-01 07:11:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:28,131 INFO L225 Difference]: With dead ends: 35 [2021-05-01 07:11:28,131 INFO L226 Difference]: Without dead ends: 30 [2021-05-01 07:11:28,132 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1789.6ms TimeCoverageRelationStatistics Valid=180, Invalid=1982, Unknown=0, NotChecked=0, Total=2162 [2021-05-01 07:11:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-05-01 07:11:28,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-05-01 07:11:28,142 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 07:11:28,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-05-01 07:11:28,143 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2021-05-01 07:11:28,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:28,143 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-05-01 07:11:28,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:28,143 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-05-01 07:11:28,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-01 07:11:28,144 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:28,144 INFO L519 BasicCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:28,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-01 07:11:28,144 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:28,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:28,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1979210481, now seen corresponding path program 17 times [2021-05-01 07:11:28,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:28,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743218837] [2021-05-01 07:11:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:28,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:28,150 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_194) InVars {main_~mid~0=v_main_~mid~0_194} OutVars{main_~mid~0=v_main_~mid~0_194} AuxVars[] AssignedVars[] [2021-05-01 07:11:28,151 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:28,152 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,160 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,163 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:28,163 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:28,165 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:28,167 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,170 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,172 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,175 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,177 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,179 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,180 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,182 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,183 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,185 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,186 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:28,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:28,201 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:28,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:28,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:28,224 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:28,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:28,233 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:28,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:28,242 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:28,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:28,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:28,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:28,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:28,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:28,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:28,285 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 07:11:28,285 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:28,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:11:28,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:28,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:28,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,308 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,336 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,338 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,369 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,371 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,408 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,409 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,442 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,444 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,479 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,484 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,522 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,524 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,562 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,564 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,607 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,654 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,655 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,705 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,707 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,759 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,760 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,816 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,818 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,881 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,887 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:28,947 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:28,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:28,949 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:28,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:28,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:29,012 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:29,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:29,013 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:29,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:29,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:29,079 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:29,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:29,080 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:29,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:29,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:29,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:29,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:29,150 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:29,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743218837] [2021-05-01 07:11:29,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [743218837] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:29,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:29,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-05-01 07:11:29,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106265778] [2021-05-01 07:11:29,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-01 07:11:29,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:29,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-01 07:11:29,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2021-05-01 07:11:29,152 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:30,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:30,965 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-05-01 07:11:30,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-01 07:11:30,965 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-05-01 07:11:30,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:30,966 INFO L225 Difference]: With dead ends: 36 [2021-05-01 07:11:30,966 INFO L226 Difference]: Without dead ends: 31 [2021-05-01 07:11:30,966 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 2000.5ms TimeCoverageRelationStatistics Valid=188, Invalid=2164, Unknown=0, NotChecked=0, Total=2352 [2021-05-01 07:11:30,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-05-01 07:11:30,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-05-01 07:11:30,980 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 07:11:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-05-01 07:11:30,980 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2021-05-01 07:11:30,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:30,981 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-05-01 07:11:30,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 23 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:30,981 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-05-01 07:11:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-01 07:11:30,981 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:30,981 INFO L519 BasicCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:30,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-01 07:11:30,982 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:30,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:30,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1191487689, now seen corresponding path program 18 times [2021-05-01 07:11:30,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:30,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354348009] [2021-05-01 07:11:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:30,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:30,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:30,988 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_214) InVars {main_~mid~0=v_main_~mid~0_214} OutVars{main_~mid~0=v_main_~mid~0_214} AuxVars[] AssignedVars[] [2021-05-01 07:11:30,990 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:30,990 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:30,994 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:30,996 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:30,996 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:30,999 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:31,001 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,004 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,006 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,009 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,012 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,014 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,016 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,018 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,020 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,022 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,023 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:31,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:31,042 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:31,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:31,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:31,059 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:31,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:31,069 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-05-01 07:11:31,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:31,086 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-05-01 07:11:31,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:31,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:31,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:31,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:31,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:31,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:31,126 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 07:11:31,128 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:11:31,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:11:31,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:31,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:31,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,151 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,173 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,174 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,198 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,199 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,226 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,227 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,258 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,259 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,292 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,294 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,330 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,331 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,372 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,373 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,415 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,416 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,460 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,468 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,518 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,520 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,573 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,574 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,637 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,639 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,696 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,697 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,758 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,759 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,824 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,825 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,893 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,895 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:31,965 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:11:31,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:31,966 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:11:31,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:11:31,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:11:32,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:32,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:32,039 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:32,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354348009] [2021-05-01 07:11:32,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1354348009] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:32,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:32,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-05-01 07:11:32,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148956222] [2021-05-01 07:11:32,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-01 07:11:32,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:32,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-01 07:11:32,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-05-01 07:11:32,040 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:34,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:34,127 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-05-01 07:11:34,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-01 07:11:34,127 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-05-01 07:11:34,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:34,128 INFO L225 Difference]: With dead ends: 37 [2021-05-01 07:11:34,128 INFO L226 Difference]: Without dead ends: 32 [2021-05-01 07:11:34,128 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 2218.5ms TimeCoverageRelationStatistics Valid=196, Invalid=2354, Unknown=0, NotChecked=0, Total=2550 [2021-05-01 07:11:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-05-01 07:11:34,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-05-01 07:11:34,146 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 07:11:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-05-01 07:11:34,147 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2021-05-01 07:11:34,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:34,147 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-05-01 07:11:34,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:34,147 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-05-01 07:11:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-01 07:11:34,148 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:34,148 INFO L519 BasicCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:34,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-01 07:11:34,148 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:34,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1753082383, now seen corresponding path program 19 times [2021-05-01 07:11:34,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:34,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194198704] [2021-05-01 07:11:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:34,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:34,155 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_235) InVars {main_~mid~0=v_main_~mid~0_235} OutVars{main_~mid~0=v_main_~mid~0_235} AuxVars[] AssignedVars[] [2021-05-01 07:11:34,157 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:34,158 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,160 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,163 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:34,163 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:34,165 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:34,167 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,169 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,171 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,173 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,176 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,178 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,180 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,182 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,184 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,186 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,186 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:34,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:34,202 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:34,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:34,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:34,220 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:34,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:34,229 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:11:34,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:34,244 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:34,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:34,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:34,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:34,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:34,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:34,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:34,280 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 07:11:34,281 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-05-01 07:11:34,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:34,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:34,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:34,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:34,300 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-05-01 07:11:34,303 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,318 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,520 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,537 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,558 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,559 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,577 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,597 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,618 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,619 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,640 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,680 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,681 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,710 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,711 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,743 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,744 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,777 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,806 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,857 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,858 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,889 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:34,919 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,919 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,950 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,950 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:34,982 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:34,983 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:35,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:35,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:35,016 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:35,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194198704] [2021-05-01 07:11:35,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [194198704] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:35,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:35,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-05-01 07:11:35,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8312917] [2021-05-01 07:11:35,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-01 07:11:35,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:35,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-01 07:11:35,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=732, Unknown=1, NotChecked=0, Total=812 [2021-05-01 07:11:35,018 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:36,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:36,729 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2021-05-01 07:11:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-01 07:11:36,729 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-05-01 07:11:36,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:36,730 INFO L225 Difference]: With dead ends: 38 [2021-05-01 07:11:36,730 INFO L226 Difference]: Without dead ends: 33 [2021-05-01 07:11:36,730 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2024.2ms TimeCoverageRelationStatistics Valid=204, Invalid=2550, Unknown=2, NotChecked=0, Total=2756 [2021-05-01 07:11:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-01 07:11:36,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-05-01 07:11:36,742 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 07:11:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-05-01 07:11:36,743 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2021-05-01 07:11:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:36,743 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-05-01 07:11:36,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-05-01 07:11:36,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-01 07:11:36,744 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:36,744 INFO L519 BasicCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:36,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-01 07:11:36,744 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:36,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:36,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1454525897, now seen corresponding path program 20 times [2021-05-01 07:11:36,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:36,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350261668] [2021-05-01 07:11:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:36,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:36,749 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_257) InVars {main_~mid~0=v_main_~mid~0_257} OutVars{main_~mid~0=v_main_~mid~0_257} AuxVars[] AssignedVars[] [2021-05-01 07:11:36,751 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:36,753 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,755 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,756 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,758 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,760 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,760 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,765 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:36,767 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,767 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:36,769 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:36,771 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,773 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,775 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,777 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,778 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,779 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:36,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:36,794 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:36,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:36,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:36,814 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:36,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:36,823 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:11:36,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:36,841 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:36,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:36,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:36,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:36,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:36,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:36,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:36,878 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 07:11:36,879 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-05-01 07:11:36,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:36,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:36,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:36,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:36,898 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-05-01 07:11:36,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:36,913 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:36,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,115 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,116 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,132 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,133 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,150 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,151 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,169 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,170 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,189 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,190 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,210 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,232 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,232 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,255 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,255 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,279 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,303 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,304 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,333 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,360 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,388 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,417 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,447 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,478 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,479 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,510 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:37,544 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:37,544 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:37,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:37,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:37,578 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:37,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350261668] [2021-05-01 07:11:37,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [350261668] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:37,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:37,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-01 07:11:37,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037279193] [2021-05-01 07:11:37,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-01 07:11:37,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:37,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-01 07:11:37,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=787, Unknown=1, NotChecked=0, Total=870 [2021-05-01 07:11:37,579 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:39,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:39,093 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2021-05-01 07:11:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-01 07:11:39,093 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-05-01 07:11:39,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:39,094 INFO L225 Difference]: With dead ends: 39 [2021-05-01 07:11:39,094 INFO L226 Difference]: Without dead ends: 34 [2021-05-01 07:11:39,095 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 1853.7ms TimeCoverageRelationStatistics Valid=212, Invalid=2756, Unknown=2, NotChecked=0, Total=2970 [2021-05-01 07:11:39,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-05-01 07:11:39,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-05-01 07:11:39,109 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 07:11:39,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2021-05-01 07:11:39,109 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2021-05-01 07:11:39,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:39,109 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2021-05-01 07:11:39,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:39,109 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2021-05-01 07:11:39,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-01 07:11:39,110 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:39,110 INFO L519 BasicCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:39,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-01 07:11:39,110 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:39,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:39,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2106134769, now seen corresponding path program 21 times [2021-05-01 07:11:39,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:39,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405086546] [2021-05-01 07:11:39,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:39,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:39,116 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_280) InVars {main_~mid~0=v_main_~mid~0_280} OutVars{main_~mid~0=v_main_~mid~0_280} AuxVars[] AssignedVars[] [2021-05-01 07:11:39,117 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:39,118 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,121 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:39,123 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,123 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:39,125 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,127 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:39,129 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,131 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,132 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,135 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,137 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,139 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,140 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,142 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,143 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,144 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:39,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:39,160 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:39,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:39,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:39,183 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:39,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:39,192 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-05-01 07:11:39,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:39,207 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-05-01 07:11:39,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:39,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:39,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:39,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:39,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:39,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:39,250 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 07:11:39,251 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:11:39,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:39,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:39,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,273 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,294 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,296 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,332 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,334 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,362 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,363 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,396 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,397 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,431 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,433 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,470 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,472 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,522 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,523 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,575 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,581 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,634 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,635 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,687 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,688 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,747 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,753 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,809 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,811 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,870 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,871 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:39,935 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:39,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:39,937 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:39,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:39,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:40,000 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:40,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:40,001 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:40,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:40,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:40,067 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:40,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:40,069 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:40,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:40,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:40,149 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:40,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:40,157 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:40,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:40,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:40,252 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:40,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:40,253 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:40,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:40,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:40,330 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:40,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:40,332 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:40,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:40,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:40,410 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:40,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:40,411 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:40,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:40,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:40,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:40,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:40,492 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:40,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405086546] [2021-05-01 07:11:40,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1405086546] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:40,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:40,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-05-01 07:11:40,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815999089] [2021-05-01 07:11:40,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-01 07:11:40,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:40,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-01 07:11:40,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2021-05-01 07:11:40,493 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:42,858 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2021-05-01 07:11:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-01 07:11:42,860 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-05-01 07:11:42,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:42,860 INFO L225 Difference]: With dead ends: 40 [2021-05-01 07:11:42,860 INFO L226 Difference]: Without dead ends: 35 [2021-05-01 07:11:42,861 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2683.5ms TimeCoverageRelationStatistics Valid=220, Invalid=2972, Unknown=0, NotChecked=0, Total=3192 [2021-05-01 07:11:42,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-01 07:11:42,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-05-01 07:11:42,880 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 07:11:42,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-05-01 07:11:42,880 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2021-05-01 07:11:42,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:42,880 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2021-05-01 07:11:42,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-05-01 07:11:42,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-01 07:11:42,881 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:42,881 INFO L519 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:42,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-01 07:11:42,881 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:42,882 INFO L82 PathProgramCache]: Analyzing trace with hash -831173321, now seen corresponding path program 22 times [2021-05-01 07:11:42,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:42,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804572006] [2021-05-01 07:11:42,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:42,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:42,888 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_304) InVars {main_~mid~0=v_main_~mid~0_304} OutVars{main_~mid~0=v_main_~mid~0_304} AuxVars[] AssignedVars[] [2021-05-01 07:11:42,889 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:42,892 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,894 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,896 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,898 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,900 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,900 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,903 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:42,905 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,905 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:42,907 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:42,909 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,911 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,913 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,915 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,916 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,917 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:42,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:42,932 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:42,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:42,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:42,951 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:42,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:42,960 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-05-01 07:11:42,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:42,976 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:42,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:42,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:42,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:42,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:42,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:43,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:43,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:43,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:43,024 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 07:11:43,025 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-05-01 07:11:43,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:43,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:43,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:43,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:43,045 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-05-01 07:11:43,045 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,060 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,264 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,281 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,299 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,318 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,318 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,338 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,338 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,359 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,382 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,382 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,405 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,421 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,452 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,453 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,485 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,486 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,519 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,555 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,556 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,592 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,593 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,637 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,638 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,676 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,717 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,759 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:11:43,801 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,802 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,845 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,846 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,891 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:11:43,892 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:11:43,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:43,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:43,929 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:43,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804572006] [2021-05-01 07:11:43,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1804572006] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:43,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:43,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-05-01 07:11:43,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503089523] [2021-05-01 07:11:43,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-01 07:11:43,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:43,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-01 07:11:43,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=903, Unknown=1, NotChecked=0, Total=992 [2021-05-01 07:11:43,930 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:45,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:45,332 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-05-01 07:11:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-01 07:11:45,333 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-05-01 07:11:45,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:45,333 INFO L225 Difference]: With dead ends: 41 [2021-05-01 07:11:45,333 INFO L226 Difference]: Without dead ends: 36 [2021-05-01 07:11:45,334 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1850.7ms TimeCoverageRelationStatistics Valid=228, Invalid=3193, Unknown=1, NotChecked=0, Total=3422 [2021-05-01 07:11:45,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-05-01 07:11:45,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-05-01 07:11:45,350 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 07:11:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-05-01 07:11:45,351 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2021-05-01 07:11:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:45,351 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-05-01 07:11:45,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-05-01 07:11:45,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-01 07:11:45,352 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:45,352 INFO L519 BasicCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:45,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-01 07:11:45,352 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:45,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:45,352 INFO L82 PathProgramCache]: Analyzing trace with hash 37925903, now seen corresponding path program 23 times [2021-05-01 07:11:45,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:45,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297691960] [2021-05-01 07:11:45,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:45,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:45,359 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_329) InVars {main_~mid~0=v_main_~mid~0_329} OutVars{main_~mid~0=v_main_~mid~0_329} AuxVars[] AssignedVars[] [2021-05-01 07:11:45,362 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:45,364 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,366 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,368 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:45,369 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:45,371 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,373 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:45,374 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,376 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,378 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,380 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,382 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,384 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,385 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,387 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,389 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,389 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:45,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:45,405 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:45,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:45,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:45,442 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:45,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:45,452 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:45,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:45,461 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:45,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:45,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:45,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:45,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:45,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:45,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:45,503 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 07:11:45,504 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:11:45,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:11:45,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:11:45,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:45,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,530 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,555 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,557 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,589 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,591 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,625 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,627 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,663 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,665 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,706 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,708 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,752 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,754 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,802 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,804 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,853 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,854 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,898 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,900 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:45,948 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:45,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:45,950 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:45,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:45,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,001 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,003 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,060 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,061 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,116 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,117 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,174 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,176 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,234 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,248 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,328 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,330 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,404 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,475 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,476 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,546 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,548 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,621 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,622 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,699 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,701 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,788 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:46,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:46,790 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:46,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:46,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:46,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:46,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:46,881 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:46,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297691960] [2021-05-01 07:11:46,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [297691960] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:46,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:46,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-05-01 07:11:46,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386702489] [2021-05-01 07:11:46,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-01 07:11:46,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:46,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-01 07:11:46,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-05-01 07:11:46,883 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:49,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:49,509 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-05-01 07:11:49,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-01 07:11:49,510 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-05-01 07:11:49,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:49,510 INFO L225 Difference]: With dead ends: 42 [2021-05-01 07:11:49,511 INFO L226 Difference]: Without dead ends: 37 [2021-05-01 07:11:49,512 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 2954.2ms TimeCoverageRelationStatistics Valid=236, Invalid=3424, Unknown=0, NotChecked=0, Total=3660 [2021-05-01 07:11:49,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-01 07:11:49,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-05-01 07:11:49,529 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 07:11:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2021-05-01 07:11:49,529 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2021-05-01 07:11:49,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:49,530 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2021-05-01 07:11:49,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:49,530 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2021-05-01 07:11:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-01 07:11:49,530 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:49,530 INFO L519 BasicCegarLoop]: trace histogram [24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:49,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-01 07:11:49,530 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:49,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:49,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1210198071, now seen corresponding path program 24 times [2021-05-01 07:11:49,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:49,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604205193] [2021-05-01 07:11:49,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:49,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:49,538 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_355) InVars {main_~mid~0=v_main_~mid~0_355} OutVars{main_~mid~0=v_main_~mid~0_355} AuxVars[] AssignedVars[] [2021-05-01 07:11:49,540 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:49,541 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,544 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:49,546 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,547 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:49,549 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:49,551 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,553 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,555 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,557 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,559 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,561 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,563 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,565 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,567 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,568 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,569 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:49,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:49,585 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:49,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:49,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:49,600 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:49,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:49,609 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-05-01 07:11:49,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:11:49,625 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-05-01 07:11:49,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:49,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:49,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:49,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:49,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:49,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:49,678 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 07:11:49,679 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:11:49,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:11:49,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:11:49,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:49,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,706 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:49,728 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:49,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,730 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:49,753 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:49,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,755 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:49,781 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:49,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,783 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:49,812 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:49,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,813 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:49,847 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:49,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,848 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:49,883 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:49,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,885 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:49,929 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:49,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,931 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:49,973 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:49,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:49,975 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:49,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,022 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,025 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,083 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,085 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,135 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,137 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,189 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,190 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,245 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,260 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,333 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,335 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,424 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,426 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,491 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,493 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,560 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,562 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,634 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,635 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,708 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,713 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,790 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,792 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,871 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,873 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:50,957 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:50,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:50,958 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:50,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:50,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:51,044 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:11:51,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:51,048 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:11:51,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:51,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:11:51,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:51,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:51,136 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:51,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604205193] [2021-05-01 07:11:51,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [604205193] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:51,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:51,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-05-01 07:11:51,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584583616] [2021-05-01 07:11:51,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-01 07:11:51,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:51,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-01 07:11:51,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1028, Unknown=0, NotChecked=0, Total=1122 [2021-05-01 07:11:51,137 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 32 states, 31 states have (on average 1.032258064516129) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:54,009 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2021-05-01 07:11:54,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-01 07:11:54,010 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.032258064516129) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-05-01 07:11:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:54,010 INFO L225 Difference]: With dead ends: 43 [2021-05-01 07:11:54,010 INFO L226 Difference]: Without dead ends: 38 [2021-05-01 07:11:54,011 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3199.2ms TimeCoverageRelationStatistics Valid=244, Invalid=3662, Unknown=0, NotChecked=0, Total=3906 [2021-05-01 07:11:54,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-05-01 07:11:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-05-01 07:11:54,029 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 07:11:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-05-01 07:11:54,029 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2021-05-01 07:11:54,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:54,030 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-05-01 07:11:54,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 31 states have (on average 1.032258064516129) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:54,030 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-05-01 07:11:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-01 07:11:54,030 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:54,030 INFO L519 BasicCegarLoop]: trace histogram [25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:54,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-01 07:11:54,030 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:54,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:54,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1104070385, now seen corresponding path program 25 times [2021-05-01 07:11:54,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:54,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069945395] [2021-05-01 07:11:54,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:54,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:54,037 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_382) InVars {main_~mid~0=v_main_~mid~0_382} OutVars{main_~mid~0=v_main_~mid~0_382} AuxVars[] AssignedVars[] [2021-05-01 07:11:54,039 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:54,041 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,043 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,045 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,047 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,049 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,050 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,053 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:54,056 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,056 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:54,059 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,061 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,063 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:54,065 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,068 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,070 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,071 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:54,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:54,091 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:54,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:54,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:54,106 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:54,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:54,117 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:54,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:54,126 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:54,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:54,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:54,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:54,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:54,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:54,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:54,165 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 07:11:54,165 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:11:54,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:54,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:54,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:54,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,188 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,210 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,211 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,237 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,239 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,266 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,268 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,303 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,340 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,341 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,388 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,390 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,430 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,431 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,475 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,477 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,526 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,527 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,577 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,578 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,633 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,635 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,693 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,695 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,757 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,759 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,830 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,831 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,896 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,901 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:54,972 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:54,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:54,973 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:54,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:54,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,045 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:55,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:55,047 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:55,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:55,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,120 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:55,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:55,123 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:55,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:55,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,215 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:55,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:55,217 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:55,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:55,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,308 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:55,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:55,309 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:55,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:55,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,395 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:55,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:55,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:55,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:55,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,486 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:55,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:55,487 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:55,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:55,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,579 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:55,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:55,584 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,684 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:55,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:55,686 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:55,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:55,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:55,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:55,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:55,784 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:11:55,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069945395] [2021-05-01 07:11:55,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2069945395] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:11:55,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:11:55,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-05-01 07:11:55,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708893185] [2021-05-01 07:11:55,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-01 07:11:55,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:11:55,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-01 07:11:55,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2021-05-01 07:11:55,786 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand has 33 states, 32 states have (on average 1.03125) internal successors, (33), 31 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:59,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:11:59,126 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2021-05-01 07:11:59,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-01 07:11:59,126 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.03125) internal successors, (33), 31 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-05-01 07:11:59,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:11:59,127 INFO L225 Difference]: With dead ends: 44 [2021-05-01 07:11:59,127 INFO L226 Difference]: Without dead ends: 39 [2021-05-01 07:11:59,128 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 3618.2ms TimeCoverageRelationStatistics Valid=252, Invalid=3908, Unknown=0, NotChecked=0, Total=4160 [2021-05-01 07:11:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-01 07:11:59,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-05-01 07:11:59,144 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 07:11:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2021-05-01 07:11:59,144 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2021-05-01 07:11:59,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:11:59,144 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2021-05-01 07:11:59,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 32 states have (on average 1.03125) internal successors, (33), 31 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:11:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2021-05-01 07:11:59,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-01 07:11:59,145 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:11:59,145 INFO L519 BasicCegarLoop]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:11:59,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-01 07:11:59,145 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:11:59,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:11:59,145 INFO L82 PathProgramCache]: Analyzing trace with hash 168051511, now seen corresponding path program 26 times [2021-05-01 07:11:59,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:11:59,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108659677] [2021-05-01 07:11:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:11:59,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:59,161 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_410) InVars {main_~mid~0=v_main_~mid~0_410} OutVars{main_~mid~0=v_main_~mid~0_410} AuxVars[] AssignedVars[] [2021-05-01 07:11:59,163 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:11:59,164 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,166 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,169 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:59,169 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:59,171 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:11:59,173 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,175 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,177 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,178 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,181 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,183 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,185 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,186 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,188 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,190 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,190 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:11:59,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:11:59,207 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:11:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:59,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:59,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:11:59,221 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:11:59,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:11:59,229 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:11:59,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:11:59,238 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:11:59,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:11:59,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:59,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:11:59,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:59,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:11:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:11:59,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:11:59,277 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 07:11:59,278 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:11:59,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:11:59,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:11:59,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:11:59,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,300 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,322 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,325 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,352 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,353 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,383 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,393 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,429 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,430 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,471 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,472 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,516 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,518 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,571 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,573 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,619 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,620 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,674 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,729 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,730 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,788 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,790 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,853 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,855 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,919 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,921 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:11:59,987 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:11:59,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:11:59,988 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:11:59,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:11:59,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,057 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,065 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,134 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,136 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,212 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,213 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,292 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,293 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,380 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,381 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,479 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,570 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,576 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,669 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,670 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,770 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,772 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,879 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,881 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:00,980 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:00,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:00,981 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:00,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:00,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:01,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:01,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:01,087 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:01,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108659677] [2021-05-01 07:12:01,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1108659677] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:01,087 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:01,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-05-01 07:12:01,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979927424] [2021-05-01 07:12:01,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-01 07:12:01,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:01,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-01 07:12:01,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1160, Unknown=0, NotChecked=0, Total=1260 [2021-05-01 07:12:01,088 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand has 34 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 32 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:04,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:12:04,869 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2021-05-01 07:12:04,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-01 07:12:04,870 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 32 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-05-01 07:12:04,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:12:04,870 INFO L225 Difference]: With dead ends: 45 [2021-05-01 07:12:04,871 INFO L226 Difference]: Without dead ends: 40 [2021-05-01 07:12:04,871 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 4050.8ms TimeCoverageRelationStatistics Valid=260, Invalid=4162, Unknown=0, NotChecked=0, Total=4422 [2021-05-01 07:12:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-05-01 07:12:04,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-05-01 07:12:04,892 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 07:12:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-05-01 07:12:04,892 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2021-05-01 07:12:04,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:12:04,893 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-05-01 07:12:04,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 32 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:04,893 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-05-01 07:12:04,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-01 07:12:04,893 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:12:04,893 INFO L519 BasicCegarLoop]: trace histogram [27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:12:04,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-01 07:12:04,893 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:12:04,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:12:04,894 INFO L82 PathProgramCache]: Analyzing trace with hash 949124623, now seen corresponding path program 27 times [2021-05-01 07:12:04,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:12:04,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940953325] [2021-05-01 07:12:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:12:04,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:04,901 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_439) InVars {main_~mid~0=v_main_~mid~0_439} OutVars{main_~mid~0=v_main_~mid~0_439} AuxVars[] AssignedVars[] [2021-05-01 07:12:04,902 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:12:04,903 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,906 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,909 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:04,910 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:04,912 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:04,914 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,916 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,918 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,920 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,923 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,925 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,927 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,928 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,930 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,932 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,932 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:12:04,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:04,950 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:12:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:04,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:04,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:04,967 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:12:04,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:12:04,977 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:12:04,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:04,988 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:12:04,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:12:04,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:04,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:05,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:05,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:05,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:05,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:05,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:12:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:05,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:05,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:05,035 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 07:12:05,038 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:12:05,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:05,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:12:05,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:05,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:05,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,067 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,098 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,100 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,138 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,140 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,179 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,181 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,216 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,217 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,254 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,255 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,295 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,297 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,346 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,348 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,398 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,454 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,456 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,518 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,520 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,581 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,583 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,644 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,646 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,711 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,713 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,778 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,779 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,850 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,852 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:05,927 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:05,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:05,928 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,006 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,007 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,087 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,088 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,175 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,176 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,261 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,262 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,353 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,355 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,445 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,447 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,547 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,549 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,650 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,651 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,754 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,756 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,861 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:06,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:06,863 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:06,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:06,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:06,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:06,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:06,980 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:06,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940953325] [2021-05-01 07:12:06,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [940953325] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:06,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:06,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-01 07:12:06,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586750243] [2021-05-01 07:12:06,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-01 07:12:06,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:06,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-01 07:12:06,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2021-05-01 07:12:06,981 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 33 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:12:10,764 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-05-01 07:12:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-01 07:12:10,765 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 33 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-05-01 07:12:10,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:12:10,765 INFO L225 Difference]: With dead ends: 46 [2021-05-01 07:12:10,765 INFO L226 Difference]: Without dead ends: 41 [2021-05-01 07:12:10,766 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 4236.3ms TimeCoverageRelationStatistics Valid=268, Invalid=4424, Unknown=0, NotChecked=0, Total=4692 [2021-05-01 07:12:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-05-01 07:12:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-05-01 07:12:10,784 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 07:12:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-05-01 07:12:10,785 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2021-05-01 07:12:10,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:12:10,785 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-05-01 07:12:10,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 33 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-05-01 07:12:10,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-01 07:12:10,785 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:12:10,785 INFO L519 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:12:10,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-01 07:12:10,786 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:12:10,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:12:10,786 INFO L82 PathProgramCache]: Analyzing trace with hash -607412681, now seen corresponding path program 28 times [2021-05-01 07:12:10,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:12:10,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945844140] [2021-05-01 07:12:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:12:10,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:10,802 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_469) InVars {main_~mid~0=v_main_~mid~0_469} OutVars{main_~mid~0=v_main_~mid~0_469} AuxVars[] AssignedVars[] [2021-05-01 07:12:10,806 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:12:10,807 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,810 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,813 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:10,813 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:10,816 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:10,818 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,821 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,823 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,826 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,829 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,832 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,834 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,836 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,838 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,841 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,841 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:12:10,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:10,864 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:12:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:10,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:10,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:10,882 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:12:10,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:12:10,893 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:12:10,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:10,904 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:12:10,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:12:10,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:10,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:10,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:10,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:12:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:10,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:10,958 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 07:12:10,959 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:12:10,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:10,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:12:10,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:12:10,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:10,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:10,989 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:10,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:10,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,020 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,022 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,057 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,059 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,096 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,098 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,130 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,132 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,167 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,168 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,207 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,208 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,250 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,252 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,297 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,299 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,348 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,350 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,402 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,403 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,459 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,460 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,520 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,521 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,582 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,583 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,646 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,648 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,715 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,716 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,788 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,790 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,864 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,865 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:11,938 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:11,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:11,939 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:11,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:11,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,017 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,019 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,098 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,100 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,184 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,185 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,271 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,273 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,363 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,364 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,461 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,462 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,568 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,569 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,671 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,673 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,774 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:12,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:12,776 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:12,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:12,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:12,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:12,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:12,907 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:12,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945844140] [2021-05-01 07:12:12,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1945844140] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:12,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:12,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-05-01 07:12:12,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985720205] [2021-05-01 07:12:12,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-01 07:12:12,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:12,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-01 07:12:12,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1300, Unknown=0, NotChecked=0, Total=1406 [2021-05-01 07:12:12,909 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 34 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:16,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:12:16,841 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-05-01 07:12:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-01 07:12:16,842 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 34 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-05-01 07:12:16,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:12:16,842 INFO L225 Difference]: With dead ends: 47 [2021-05-01 07:12:16,842 INFO L226 Difference]: Without dead ends: 42 [2021-05-01 07:12:16,843 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 4330.8ms TimeCoverageRelationStatistics Valid=276, Invalid=4694, Unknown=0, NotChecked=0, Total=4970 [2021-05-01 07:12:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-05-01 07:12:16,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-05-01 07:12:16,868 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 07:12:16,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-05-01 07:12:16,869 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2021-05-01 07:12:16,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:12:16,869 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-05-01 07:12:16,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 34 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:16,869 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-05-01 07:12:16,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-01 07:12:16,870 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:12:16,870 INFO L519 BasicCegarLoop]: trace histogram [29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:12:16,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-01 07:12:16,870 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:12:16,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:12:16,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1615428849, now seen corresponding path program 29 times [2021-05-01 07:12:16,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:12:16,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995444658] [2021-05-01 07:12:16,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:12:16,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:16,878 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_500) InVars {main_~mid~0=v_main_~mid~0_500} OutVars{main_~mid~0=v_main_~mid~0_500} AuxVars[] AssignedVars[] [2021-05-01 07:12:16,880 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:12:16,883 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,886 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,889 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,891 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,894 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,895 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,899 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:16,902 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,902 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:16,905 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:16,908 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,911 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,913 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,916 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,919 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,920 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:12:16,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:16,941 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:12:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:16,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:16,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:16,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:16,971 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:12:16,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:12:16,980 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-05-01 07:12:16,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:12:16,997 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:12:16,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:12:17,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:17,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:17,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:17,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:17,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:17,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:17,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:12:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:17,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:17,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:17,050 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 07:12:17,051 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:12:17,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:17,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:12:17,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:12:17,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:17,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,077 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,100 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,101 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,126 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,128 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,156 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,158 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,190 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,192 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,227 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,228 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,267 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,268 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,309 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,311 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,355 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,357 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,428 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,429 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,481 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,483 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,555 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,556 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,614 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,615 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,677 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,678 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,743 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,744 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,810 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,811 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,883 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,884 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:17,959 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:17,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:17,964 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:17,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:17,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,044 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,046 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,127 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,129 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,214 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,215 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,304 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,305 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,399 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,401 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,514 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,515 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,622 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,623 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,725 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,831 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,832 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:18,945 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:18,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:18,946 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:18,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:18,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:19,084 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:19,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:19,086 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:19,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:19,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:19,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:19,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:19,204 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:19,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995444658] [2021-05-01 07:12:19,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1995444658] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:19,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:19,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-05-01 07:12:19,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186348572] [2021-05-01 07:12:19,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-01 07:12:19,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:19,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-01 07:12:19,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1373, Unknown=0, NotChecked=0, Total=1482 [2021-05-01 07:12:19,206 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 35 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:23,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:12:23,633 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-05-01 07:12:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-01 07:12:23,634 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 35 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-05-01 07:12:23,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:12:23,634 INFO L225 Difference]: With dead ends: 48 [2021-05-01 07:12:23,635 INFO L226 Difference]: Without dead ends: 43 [2021-05-01 07:12:23,635 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 4786.0ms TimeCoverageRelationStatistics Valid=284, Invalid=4972, Unknown=0, NotChecked=0, Total=5256 [2021-05-01 07:12:23,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-05-01 07:12:23,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-05-01 07:12:23,657 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 07:12:23,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-05-01 07:12:23,657 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2021-05-01 07:12:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:12:23,657 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-05-01 07:12:23,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 35 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:23,658 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-05-01 07:12:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-01 07:12:23,658 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:12:23,658 INFO L519 BasicCegarLoop]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:12:23,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-01 07:12:23,658 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:12:23,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:12:23,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1495808311, now seen corresponding path program 30 times [2021-05-01 07:12:23,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:12:23,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543300185] [2021-05-01 07:12:23,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:12:23,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:23,665 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_532) InVars {main_~mid~0=v_main_~mid~0_532} OutVars{main_~mid~0=v_main_~mid~0_532} AuxVars[] AssignedVars[] [2021-05-01 07:12:23,666 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:12:23,669 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,671 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,673 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,675 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,677 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,678 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,681 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:23,683 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,684 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:23,686 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,688 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:23,690 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,692 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,694 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,697 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,697 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:12:23,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:23,717 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:12:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:23,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:23,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:23,735 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:12:23,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:12:23,745 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:12:23,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:23,756 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:12:23,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:12:23,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:23,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:23,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:23,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:12:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:23,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:23,798 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 07:12:23,799 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:12:23,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:23,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:12:23,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:23,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:23,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:23,826 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:23,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:23,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:23,851 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:23,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:23,853 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:23,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:23,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:23,883 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:23,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:23,888 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:23,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:23,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:23,921 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:23,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:23,922 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:23,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:23,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:23,960 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:23,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:23,973 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:23,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:23,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,022 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,023 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,067 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,068 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,116 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,118 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,170 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,180 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,236 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,237 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,298 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,300 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,383 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,385 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,452 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,453 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,524 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,525 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,603 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,604 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,684 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,686 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,771 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,772 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,860 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,862 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:24,956 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:24,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:24,957 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:24,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:24,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,054 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,056 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,157 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,159 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,255 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,257 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,362 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,364 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,474 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,475 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,584 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,586 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,701 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,702 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,815 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,817 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:25,965 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:25,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:25,966 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:25,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:25,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:26,098 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:26,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:26,099 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:26,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:26,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:26,231 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:12:26,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:26,232 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:12:26,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:12:26,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:12:26,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:26,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:26,368 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:26,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543300185] [2021-05-01 07:12:26,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [543300185] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:26,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:26,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-05-01 07:12:26,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942142546] [2021-05-01 07:12:26,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-01 07:12:26,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:26,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-01 07:12:26,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1448, Unknown=0, NotChecked=0, Total=1560 [2021-05-01 07:12:26,369 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 38 states, 37 states have (on average 1.027027027027027) internal successors, (38), 36 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:12:31,520 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2021-05-01 07:12:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-01 07:12:31,520 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 1.027027027027027) internal successors, (38), 36 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-05-01 07:12:31,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:12:31,521 INFO L225 Difference]: With dead ends: 49 [2021-05-01 07:12:31,521 INFO L226 Difference]: Without dead ends: 44 [2021-05-01 07:12:31,522 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 5546.5ms TimeCoverageRelationStatistics Valid=292, Invalid=5258, Unknown=0, NotChecked=0, Total=5550 [2021-05-01 07:12:31,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-05-01 07:12:31,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-05-01 07:12:31,555 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 07:12:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2021-05-01 07:12:31,556 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2021-05-01 07:12:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:12:31,556 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2021-05-01 07:12:31,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 37 states have (on average 1.027027027027027) internal successors, (38), 36 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2021-05-01 07:12:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-01 07:12:31,556 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:12:31,557 INFO L519 BasicCegarLoop]: trace histogram [31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:12:31,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-01 07:12:31,557 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:12:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:12:31,557 INFO L82 PathProgramCache]: Analyzing trace with hash -840087537, now seen corresponding path program 31 times [2021-05-01 07:12:31,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:12:31,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945960610] [2021-05-01 07:12:31,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:12:31,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:31,564 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_565) InVars {main_~mid~0=v_main_~mid~0_565} OutVars{main_~mid~0=v_main_~mid~0_565} AuxVars[] AssignedVars[] [2021-05-01 07:12:31,566 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:12:31,567 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,570 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,573 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:31,573 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:31,587 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,590 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:31,592 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,594 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,596 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,600 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,602 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,604 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,606 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,608 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,610 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,610 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:12:31,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:31,629 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:12:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:31,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:31,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:31,648 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:12:31,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:12:31,660 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:12:31,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:31,674 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:12:31,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:12:31,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:31,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:31,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:31,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:12:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:31,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:31,734 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 07:12:31,735 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:12:31,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:31,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:12:31,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:12:31,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:31,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:31,780 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:31,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:31,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:31,813 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:31,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:31,815 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:31,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:31,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:31,854 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:31,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:31,856 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:31,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:31,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:31,902 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:31,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:31,904 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:31,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:31,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:31,949 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:31,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:31,952 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:31,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:31,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,003 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,005 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,060 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,062 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,123 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,125 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,187 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,191 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,263 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,265 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,344 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,347 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,429 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,431 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,514 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,516 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,604 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,606 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,683 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,685 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,757 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,759 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,837 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,838 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:32,917 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:32,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:32,921 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:32,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:32,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,011 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,012 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,098 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,099 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,191 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,192 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,288 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,290 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,391 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,393 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,501 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,503 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,645 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,647 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,753 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,754 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,866 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,868 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:33,981 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:33,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:33,983 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:33,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:33,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:34,102 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:34,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:34,104 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:34,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:34,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:34,214 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:34,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:34,216 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:34,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:34,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:34,334 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:12:34,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:34,336 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:12:34,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:34,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:12:34,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:34,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:34,463 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:34,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945960610] [2021-05-01 07:12:34,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [945960610] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:34,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:34,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-05-01 07:12:34,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523363357] [2021-05-01 07:12:34,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-01 07:12:34,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:34,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-01 07:12:34,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-05-01 07:12:34,465 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand has 39 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 37 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:39,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:12:39,875 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-05-01 07:12:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-01 07:12:39,876 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 37 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-05-01 07:12:39,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:12:39,877 INFO L225 Difference]: With dead ends: 50 [2021-05-01 07:12:39,877 INFO L226 Difference]: Without dead ends: 45 [2021-05-01 07:12:39,877 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 866 ImplicationChecksByTransitivity, 5893.3ms TimeCoverageRelationStatistics Valid=300, Invalid=5552, Unknown=0, NotChecked=0, Total=5852 [2021-05-01 07:12:39,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-05-01 07:12:39,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-05-01 07:12:39,902 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 07:12:39,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2021-05-01 07:12:39,903 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2021-05-01 07:12:39,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:12:39,903 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2021-05-01 07:12:39,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 37 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:39,903 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2021-05-01 07:12:39,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-01 07:12:39,903 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:12:39,903 INFO L519 BasicCegarLoop]: trace histogram [32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:12:39,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-01 07:12:39,904 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:12:39,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:12:39,904 INFO L82 PathProgramCache]: Analyzing trace with hash -238414793, now seen corresponding path program 32 times [2021-05-01 07:12:39,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:12:39,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658889656] [2021-05-01 07:12:39,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:12:39,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:39,914 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_599) InVars {main_~mid~0=v_main_~mid~0_599} OutVars{main_~mid~0=v_main_~mid~0_599} AuxVars[] AssignedVars[] [2021-05-01 07:12:39,923 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:12:39,924 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,928 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,932 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:39,933 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:39,936 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:39,940 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,943 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,946 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,949 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,951 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,953 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,955 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,959 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,962 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,964 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,964 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:12:39,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:39,985 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:12:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:39,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:39,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:39,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:40,000 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:12:40,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:12:40,010 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:12:40,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:40,021 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:12:40,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:12:40,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:40,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:40,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:40,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:40,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:40,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:12:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:40,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:40,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:40,076 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 07:12:40,077 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:12:40,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:40,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:12:40,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:12:40,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:40,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,111 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,145 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,146 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,178 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,180 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,215 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,217 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,254 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,255 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,290 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,292 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,331 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,333 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,377 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,379 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,426 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,428 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,478 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,479 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,529 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,531 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,584 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,586 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,645 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,646 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,717 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,719 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,797 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,876 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,878 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:40,966 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:40,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:40,967 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:40,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:40,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,065 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,067 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,162 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,164 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,265 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,267 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,368 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,369 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,480 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,482 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,596 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,598 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,720 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,721 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,843 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,845 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:41,963 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:41,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:41,965 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:41,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:41,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:42,088 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:42,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:42,094 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:42,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:42,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:42,221 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:42,222 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:42,223 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:42,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:42,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:42,353 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:42,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:42,355 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:42,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:42,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:42,496 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:42,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:42,498 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:42,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:42,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:42,646 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:42,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:42,648 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:42,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:42,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:42,797 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:12:42,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:42,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:12:42,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:12:42,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:12:42,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:42,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:42,950 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:42,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658889656] [2021-05-01 07:12:42,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [658889656] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:42,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:42,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-05-01 07:12:42,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093570255] [2021-05-01 07:12:42,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-01 07:12:42,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:42,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-01 07:12:42,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1604, Unknown=0, NotChecked=0, Total=1722 [2021-05-01 07:12:42,952 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 40 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 38 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:49,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:12:49,034 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-05-01 07:12:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-01 07:12:49,035 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 38 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-05-01 07:12:49,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:12:49,036 INFO L225 Difference]: With dead ends: 51 [2021-05-01 07:12:49,036 INFO L226 Difference]: Without dead ends: 46 [2021-05-01 07:12:49,036 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 6471.4ms TimeCoverageRelationStatistics Valid=308, Invalid=5854, Unknown=0, NotChecked=0, Total=6162 [2021-05-01 07:12:49,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-05-01 07:12:49,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-05-01 07:12:49,064 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 07:12:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-05-01 07:12:49,064 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2021-05-01 07:12:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:12:49,064 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-05-01 07:12:49,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 38 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-05-01 07:12:49,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-01 07:12:49,065 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:12:49,065 INFO L519 BasicCegarLoop]: trace histogram [33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:12:49,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-01 07:12:49,065 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:12:49,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:12:49,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1233571087, now seen corresponding path program 33 times [2021-05-01 07:12:49,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:12:49,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915563598] [2021-05-01 07:12:49,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:12:49,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:49,080 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_634) InVars {main_~mid~0=v_main_~mid~0_634} OutVars{main_~mid~0=v_main_~mid~0_634} AuxVars[] AssignedVars[] [2021-05-01 07:12:49,082 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:12:49,083 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,088 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:49,091 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,091 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:49,094 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,097 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:49,099 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,103 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,106 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,110 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,113 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,116 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,119 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,121 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,124 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,125 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:12:49,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:49,152 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:12:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:49,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:49,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:49,168 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:12:49,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:12:49,182 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:12:49,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:12:49,208 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:12:49,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:12:49,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:49,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:49,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:49,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:12:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:49,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:49,270 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 07:12:49,271 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-05-01 07:12:49,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:49,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:49,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 07:12:49,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:12:49,306 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-05-01 07:12:49,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:49,334 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:49,557 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,558 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:49,580 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,581 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:49,605 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:49,631 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:49,659 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,660 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:49,688 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,689 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:49,719 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,719 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:49,750 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:49,784 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,784 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:49,820 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,821 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:49,856 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:49,900 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,900 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:49,939 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:49,980 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:49,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:50,017 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,017 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,054 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:50,092 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,093 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,131 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:50,171 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,172 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,212 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,213 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,255 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:50,299 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,300 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,345 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:50,392 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,394 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,442 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,443 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,492 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,493 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,551 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,552 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,616 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,617 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,686 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,687 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,755 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,756 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,819 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:50,820 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:50,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:50,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:50,883 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:50,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915563598] [2021-05-01 07:12:50,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1915563598] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:50,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:50,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-05-01 07:12:50,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578016002] [2021-05-01 07:12:50,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-05-01 07:12:50,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:50,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-05-01 07:12:50,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1684, Unknown=1, NotChecked=0, Total=1806 [2021-05-01 07:12:50,885 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 41 states, 40 states have (on average 1.025) internal successors, (41), 39 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:54,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:12:54,582 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-05-01 07:12:54,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-01 07:12:54,583 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.025) internal successors, (41), 39 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-05-01 07:12:54,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:12:54,584 INFO L225 Difference]: With dead ends: 52 [2021-05-01 07:12:54,584 INFO L226 Difference]: Without dead ends: 47 [2021-05-01 07:12:54,585 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 4102.1ms TimeCoverageRelationStatistics Valid=316, Invalid=6162, Unknown=2, NotChecked=0, Total=6480 [2021-05-01 07:12:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-01 07:12:54,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-05-01 07:12:54,625 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 07:12:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-05-01 07:12:54,625 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2021-05-01 07:12:54,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:12:54,625 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-05-01 07:12:54,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 41 states, 40 states have (on average 1.025) internal successors, (41), 39 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:12:54,626 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-05-01 07:12:54,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-05-01 07:12:54,626 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:12:54,626 INFO L519 BasicCegarLoop]: trace histogram [34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:12:54,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-01 07:12:54,626 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:12:54,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:12:54,627 INFO L82 PathProgramCache]: Analyzing trace with hash -379506889, now seen corresponding path program 34 times [2021-05-01 07:12:54,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:12:54,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206793594] [2021-05-01 07:12:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:12:54,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:54,635 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_670) InVars {main_~mid~0=v_main_~mid~0_670} OutVars{main_~mid~0=v_main_~mid~0_670} AuxVars[] AssignedVars[] [2021-05-01 07:12:54,637 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:12:54,638 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,642 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,646 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:54,647 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:12:54,650 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:12:54,654 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,658 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,661 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,664 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,667 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,669 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,671 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,673 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,676 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,679 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,679 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:12:54,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:54,702 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:12:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:54,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:54,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:12:54,719 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:12:54,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:12:54,733 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:12:54,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:12:54,756 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:12:54,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:12:54,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:54,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:12:54,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:54,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:12:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:12:54,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:12:54,828 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-05-01 07:12:54,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:12:54,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:54,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:12:54,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:12:54,854 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-05-01 07:12:54,855 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:54,876 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:54,877 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,108 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,133 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,163 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,164 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,193 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,194 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,237 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,238 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,264 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,265 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,295 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,328 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,329 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,362 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,431 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,432 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,470 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,471 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,509 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,549 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,591 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,592 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,634 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,635 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:55,680 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,724 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,771 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,825 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,874 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,927 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:55,982 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:55,984 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:56,038 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,039 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:56,096 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,097 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:56,154 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:56,215 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:56,279 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:56,344 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,345 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:56,407 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:12:56,474 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,475 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:56,547 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:12:56,548 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:12:56,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:12:56,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:12:56,616 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:12:56,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206793594] [2021-05-01 07:12:56,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [206793594] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:12:56,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:12:56,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2021-05-01 07:12:56,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478000438] [2021-05-01 07:12:56,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-01 07:12:56,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:12:56,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-01 07:12:56,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1767, Unknown=1, NotChecked=0, Total=1892 [2021-05-01 07:12:56,618 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 42 states, 41 states have (on average 1.024390243902439) internal successors, (42), 40 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:13:00,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:13:00,462 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-05-01 07:13:00,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-01 07:13:00,463 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 1.024390243902439) internal successors, (42), 40 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2021-05-01 07:13:00,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:13:00,464 INFO L225 Difference]: With dead ends: 53 [2021-05-01 07:13:00,464 INFO L226 Difference]: Without dead ends: 48 [2021-05-01 07:13:00,465 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 998 ImplicationChecksByTransitivity, 4305.0ms TimeCoverageRelationStatistics Valid=324, Invalid=6480, Unknown=2, NotChecked=0, Total=6806 [2021-05-01 07:13:00,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-05-01 07:13:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-05-01 07:13:00,492 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 07:13:00,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-05-01 07:13:00,493 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2021-05-01 07:13:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:13:00,493 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-05-01 07:13:00,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 42 states, 41 states have (on average 1.024390243902439) internal successors, (42), 40 states have internal predecessors, (42), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:13:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-05-01 07:13:00,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-01 07:13:00,493 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:13:00,493 INFO L519 BasicCegarLoop]: trace histogram [35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:13:00,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-01 07:13:00,494 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:13:00,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:13:00,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1154683407, now seen corresponding path program 35 times [2021-05-01 07:13:00,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:13:00,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243362553] [2021-05-01 07:13:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:13:00,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:13:00,500 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_707) InVars {main_~mid~0=v_main_~mid~0_707} OutVars{main_~mid~0=v_main_~mid~0_707} AuxVars[] AssignedVars[] [2021-05-01 07:13:00,501 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:13:00,504 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,506 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,508 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,511 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,513 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,514 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,518 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:13:00,521 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,521 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:13:00,524 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:13:00,528 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,531 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,534 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,536 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,539 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,540 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:13:00,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:13:00,568 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:13:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:13:00,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:00,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:13:00,587 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:13:00,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:13:00,602 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-05-01 07:13:00,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:13:00,625 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-05-01 07:13:00,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:13:00,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:13:00,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:13:00,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:00,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:13:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:13:00,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:00,682 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 07:13:00,683 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:13:00,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:00,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:13:00,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:13:00,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:00,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:00,719 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:00,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:00,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:00,752 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:00,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:00,754 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:00,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:00,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:00,789 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:00,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:00,791 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:00,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:00,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:00,834 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:00,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:00,835 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:00,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:00,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:00,878 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:00,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:00,880 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:00,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:00,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:00,927 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:00,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:00,929 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:00,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:00,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:00,983 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:00,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:00,984 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:00,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:00,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,046 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,048 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,108 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,126 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,193 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,194 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,267 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,269 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,346 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,348 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,430 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,437 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,525 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,618 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,619 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,717 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,719 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,823 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,825 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:01,930 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:01,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:01,931 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:01,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:01,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:02,039 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:02,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:02,040 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:02,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:02,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:02,151 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:02,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:02,153 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:02,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:02,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:02,266 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:02,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:02,268 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:02,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:02,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:02,385 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:02,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:02,387 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:02,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:02,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:02,508 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:02,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:02,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:02,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:02,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:02,642 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:02,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:02,644 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:02,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:02,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:02,773 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:02,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:02,775 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:02,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:02,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:02,912 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:02,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:02,913 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:02,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:02,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:03,053 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:03,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:03,055 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:03,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:03,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:03,201 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:03,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:03,203 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:03,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:03,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:03,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:03,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:03,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:03,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:03,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:03,533 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:03,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:03,535 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:03,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:03,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:03,717 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:03,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:03,718 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:03,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:03,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:03,866 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:03,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:03,868 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:03,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:03,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:04,018 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:04,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:04,020 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:04,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:04,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:04,173 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:04,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:04,174 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:04,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:04,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:04,344 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:04,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:04,355 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:04,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:04,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:04,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:04,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:04,563 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:13:04,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243362553] [2021-05-01 07:13:04,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1243362553] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:13:04,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:13:04,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-05-01 07:13:04,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135603074] [2021-05-01 07:13:04,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-01 07:13:04,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:13:04,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-01 07:13:04,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1853, Unknown=0, NotChecked=0, Total=1980 [2021-05-01 07:13:04,565 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 43 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 41 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:13:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:13:12,933 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2021-05-01 07:13:12,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-01 07:13:12,934 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 41 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2021-05-01 07:13:12,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:13:12,935 INFO L225 Difference]: With dead ends: 54 [2021-05-01 07:13:12,935 INFO L226 Difference]: Without dead ends: 49 [2021-05-01 07:13:12,935 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 8897.1ms TimeCoverageRelationStatistics Valid=332, Invalid=6808, Unknown=0, NotChecked=0, Total=7140 [2021-05-01 07:13:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-01 07:13:12,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-05-01 07:13:12,964 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 07:13:12,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-05-01 07:13:12,965 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2021-05-01 07:13:12,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:13:12,965 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-05-01 07:13:12,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 41 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:13:12,965 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-05-01 07:13:12,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-01 07:13:12,965 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:13:12,965 INFO L519 BasicCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:13:12,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-05-01 07:13:12,966 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:13:12,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:13:12,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1469942327, now seen corresponding path program 36 times [2021-05-01 07:13:12,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:13:12,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188484365] [2021-05-01 07:13:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:13:12,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:12,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:13:12,974 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_745) InVars {main_~mid~0=v_main_~mid~0_745} OutVars{main_~mid~0=v_main_~mid~0_745} AuxVars[] AssignedVars[] [2021-05-01 07:13:12,975 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:13:12,976 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:12,980 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:13:12,982 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:12,982 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:13:12,985 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:12,988 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:12,990 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:13:12,993 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:12,996 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,000 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,003 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,006 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,008 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,011 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,013 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,014 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:13:13,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:13:13,040 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:13:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:13:13,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:13,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:13:13,057 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:13:13,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:13:13,072 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:13:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:13:13,090 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:13:13,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:13:13,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:13:13,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:13:13,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:13,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:13:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:13:13,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 07:13:13,156 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:13:13,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:13:13,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:13:13,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:13,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,189 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,220 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,222 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,259 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,261 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,301 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,302 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,348 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,349 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,406 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,407 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,467 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,468 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,532 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,533 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,604 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,606 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,681 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,683 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,759 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,760 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,842 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,844 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:13,924 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:13,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:13,926 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:13,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:13,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,016 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,017 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,115 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,117 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,220 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,222 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,326 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,327 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,438 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,440 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,565 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,567 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,688 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,689 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,808 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,808 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,809 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:14,911 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:14,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:14,913 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:14,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:14,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:15,020 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:15,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:15,022 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:15,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:15,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:15,129 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:15,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:15,131 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:15,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:15,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:15,238 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:15,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:15,240 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:15,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:15,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:15,355 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:15,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:15,356 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:15,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:15,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:15,499 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:15,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:15,500 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:15,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:15,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:15,673 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:15,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:15,674 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:15,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:15,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:15,877 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:15,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:15,879 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:15,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:15,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:16,093 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:16,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:16,095 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:16,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:16,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:16,303 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:16,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:16,305 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:16,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:16,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:16,513 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:16,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:16,515 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:16,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:16,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:16,720 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:16,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:16,722 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:16,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:16,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:16,901 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:16,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:16,903 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:16,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:16,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:17,091 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:17,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:17,093 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:17,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:17,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:17,274 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:13:17,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:17,276 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:13:17,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:17,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:13:17,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:17,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:17,458 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:13:17,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188484365] [2021-05-01 07:13:17,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [188484365] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:13:17,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:13:17,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-05-01 07:13:17,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637047146] [2021-05-01 07:13:17,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-05-01 07:13:17,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:13:17,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-05-01 07:13:17,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1940, Unknown=0, NotChecked=0, Total=2070 [2021-05-01 07:13:17,459 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 44 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 42 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:13:26,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:13:26,488 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2021-05-01 07:13:26,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-01 07:13:26,490 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 42 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-05-01 07:13:26,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:13:26,491 INFO L225 Difference]: With dead ends: 55 [2021-05-01 07:13:26,491 INFO L226 Difference]: Without dead ends: 50 [2021-05-01 07:13:26,492 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 9589.7ms TimeCoverageRelationStatistics Valid=340, Invalid=7142, Unknown=0, NotChecked=0, Total=7482 [2021-05-01 07:13:26,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-05-01 07:13:26,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-05-01 07:13:26,524 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 07:13:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-05-01 07:13:26,525 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2021-05-01 07:13:26,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:13:26,525 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-05-01 07:13:26,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 44 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 42 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:13:26,525 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-05-01 07:13:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-01 07:13:26,525 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:13:26,526 INFO L519 BasicCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:13:26,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-05-01 07:13:26,526 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:13:26,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:13:26,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1641933041, now seen corresponding path program 37 times [2021-05-01 07:13:26,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:13:26,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234262181] [2021-05-01 07:13:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:13:26,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:13:26,535 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_784) InVars {main_~mid~0=v_main_~mid~0_784} OutVars{main_~mid~0=v_main_~mid~0_784} AuxVars[] AssignedVars[] [2021-05-01 07:13:26,542 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:13:26,543 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,550 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:13:26,553 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,554 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:13:26,557 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:13:26,561 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,565 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,569 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,573 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,579 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,582 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,586 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,589 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,592 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,595 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,596 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:13:26,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:13:26,622 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:13:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:13:26,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:26,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:13:26,642 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:13:26,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:13:26,662 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:13:26,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:13:26,681 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:13:26,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:13:26,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:13:26,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:13:26,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:26,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:13:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:13:26,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:26,745 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 07:13:26,746 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:13:26,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:26,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:13:26,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:13:26,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:26,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:26,783 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:26,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:26,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:26,824 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:26,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:26,826 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:26,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:26,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:26,869 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:26,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:26,870 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:26,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:26,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:26,927 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:26,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:26,929 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:26,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:26,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:26,988 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:26,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:26,990 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:26,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:26,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,058 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,060 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,131 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,133 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,208 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,212 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,290 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,291 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,370 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,372 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,460 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,556 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,558 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,655 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,657 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,751 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,753 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,860 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,862 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:27,972 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:27,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:27,974 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:27,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:27,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:28,083 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:28,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:28,085 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:28,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:28,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:28,211 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:28,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:28,213 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:28,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:28,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:28,340 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:28,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:28,342 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:28,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:28,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:28,480 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:28,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:28,481 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:28,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:28,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:28,622 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:28,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:28,623 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:28,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:28,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:28,764 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:28,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:28,766 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:28,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:28,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:28,909 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:28,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:28,911 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:28,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:28,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:29,065 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:29,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:29,067 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:29,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:29,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:29,227 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:29,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:29,229 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:29,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:29,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:29,390 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:29,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:29,392 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:29,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:29,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:29,560 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:29,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:29,562 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:29,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:29,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:29,734 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:29,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:29,737 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:29,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:29,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:29,937 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:29,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:29,939 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:29,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:29,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:30,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:30,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:30,162 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:30,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:30,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:30,381 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:30,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:30,383 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:30,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:30,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:30,591 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:30,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:30,593 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:30,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:30,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:30,762 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:30,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:30,764 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:30,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:30,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:30,936 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:30,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:30,938 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:30,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:30,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:31,106 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:31,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:31,108 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:31,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:31,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:31,318 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:31,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:31,320 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:31,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:31,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:31,595 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:13:31,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:31,597 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:13:31,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:13:31,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:13:31,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:31,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:31,886 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:13:31,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234262181] [2021-05-01 07:13:31,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [234262181] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:13:31,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:13:31,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2021-05-01 07:13:31,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55365606] [2021-05-01 07:13:31,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-05-01 07:13:31,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:13:31,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-05-01 07:13:31,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2029, Unknown=0, NotChecked=0, Total=2162 [2021-05-01 07:13:31,887 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 43 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:13:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:13:44,386 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-05-01 07:13:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-01 07:13:44,388 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 43 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-05-01 07:13:44,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:13:44,389 INFO L225 Difference]: With dead ends: 56 [2021-05-01 07:13:44,389 INFO L226 Difference]: Without dead ends: 51 [2021-05-01 07:13:44,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 12542.6ms TimeCoverageRelationStatistics Valid=348, Invalid=7484, Unknown=0, NotChecked=0, Total=7832 [2021-05-01 07:13:44,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-01 07:13:44,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-05-01 07:13:44,425 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 07:13:44,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-05-01 07:13:44,426 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2021-05-01 07:13:44,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:13:44,426 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-05-01 07:13:44,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 43 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:13:44,426 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-05-01 07:13:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-01 07:13:44,426 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:13:44,426 INFO L519 BasicCegarLoop]: trace histogram [38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:13:44,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-01 07:13:44,427 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:13:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:13:44,427 INFO L82 PathProgramCache]: Analyzing trace with hash 674178359, now seen corresponding path program 38 times [2021-05-01 07:13:44,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:13:44,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163530823] [2021-05-01 07:13:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:13:44,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:13:44,444 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_824) InVars {main_~mid~0=v_main_~mid~0_824} OutVars{main_~mid~0=v_main_~mid~0_824} AuxVars[] AssignedVars[] [2021-05-01 07:13:44,446 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:13:44,447 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,454 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:13:44,458 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,459 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:13:44,464 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,467 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:13:44,471 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,476 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,480 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,486 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,490 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,494 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,498 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,502 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,506 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,507 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:13:44,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:13:44,553 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:13:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:13:44,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:44,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:13:44,575 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:13:44,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:13:44,601 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:13:44,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:13:44,631 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:13:44,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:13:44,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:13:44,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:13:44,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:44,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:13:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:13:44,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:44,733 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 07:13:44,735 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:13:44,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:44,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:13:44,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:13:44,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:44,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:44,786 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:44,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:44,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:44,846 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:44,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:44,848 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:44,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:44,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:44,919 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:44,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:44,921 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:44,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:44,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,005 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,008 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,098 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,101 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,193 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,195 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,300 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,302 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,408 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,410 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,540 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,543 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,657 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,659 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,759 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,761 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:45,886 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:45,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:45,888 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:45,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:45,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:46,014 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:46,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:46,016 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:46,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:46,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:46,147 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:46,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:46,149 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:46,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:46,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:46,287 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:46,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:46,289 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:46,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:46,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:46,433 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:46,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:46,435 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:46,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:46,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:46,586 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:46,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:46,588 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:46,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:46,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:46,752 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:46,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:46,754 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:46,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:46,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:46,921 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:46,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:46,924 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:46,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:46,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:47,089 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:47,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:47,090 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:47,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:47,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:47,248 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:47,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:47,250 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:47,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:47,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:47,421 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:47,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:47,423 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:47,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:47,585 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:47,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:47,587 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:47,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:47,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:47,754 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:47,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:47,756 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:47,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:47,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:47,948 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:47,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:47,950 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:47,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:47,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:48,137 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:48,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:48,139 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:48,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:48,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:48,339 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:48,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:48,341 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:48,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:48,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:48,551 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:48,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:48,553 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:48,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:48,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:48,750 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:48,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:48,751 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:48,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:48,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:48,970 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:48,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:48,972 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:48,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:48,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:49,182 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:49,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:49,185 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:49,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:49,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:49,412 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:49,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:49,414 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:49,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:49,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:49,665 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:49,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:49,667 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:49,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:49,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:49,910 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:49,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:49,912 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:49,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:49,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:50,166 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:50,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:50,168 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:50,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:50,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:50,458 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:50,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:50,460 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:50,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:50,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:50,740 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:50,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:50,742 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:50,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:50,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:51,015 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:13:51,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:13:51,016 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:13:51,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:13:51,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:13:51,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:13:51,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:13:51,354 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:13:51,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163530823] [2021-05-01 07:13:51,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1163530823] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:13:51,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:13:51,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2021-05-01 07:13:51,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82938216] [2021-05-01 07:13:51,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-01 07:13:51,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:13:51,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-01 07:13:51,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2120, Unknown=0, NotChecked=0, Total=2256 [2021-05-01 07:13:51,355 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 44 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:14:06,099 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-05-01 07:14:06,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:14:06,660 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2021-05-01 07:14:06,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-01 07:14:06,662 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 44 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-05-01 07:14:06,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:14:06,663 INFO L225 Difference]: With dead ends: 57 [2021-05-01 07:14:06,663 INFO L226 Difference]: Without dead ends: 52 [2021-05-01 07:14:06,664 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 15520.3ms TimeCoverageRelationStatistics Valid=356, Invalid=7834, Unknown=0, NotChecked=0, Total=8190 [2021-05-01 07:14:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-05-01 07:14:06,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-05-01 07:14:06,703 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 07:14:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-05-01 07:14:06,704 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2021-05-01 07:14:06,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:14:06,704 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-05-01 07:14:06,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 44 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:14:06,704 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-05-01 07:14:06,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-01 07:14:06,705 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:14:06,705 INFO L519 BasicCegarLoop]: trace histogram [39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:14:06,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-05-01 07:14:06,705 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:14:06,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:14:06,705 INFO L82 PathProgramCache]: Analyzing trace with hash -540812273, now seen corresponding path program 39 times [2021-05-01 07:14:06,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:14:06,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451516795] [2021-05-01 07:14:06,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:14:06,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:14:06,714 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_865) InVars {main_~mid~0=v_main_~mid~0_865} OutVars{main_~mid~0=v_main_~mid~0_865} AuxVars[] AssignedVars[] [2021-05-01 07:14:06,716 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:14:06,720 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,724 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,728 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,732 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,736 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,737 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,743 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:14:06,747 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,748 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:14:06,752 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:14:06,758 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,762 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,770 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,777 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,781 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,782 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:14:06,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:06,828 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:14:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:14:06,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:06,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:14:06,851 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:14:06,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:14:06,872 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:14:06,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:14:06,915 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:14:06,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:14:06,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:14:06,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:14:06,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:06,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:06,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:14:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:14:07,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:07,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:07,007 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 07:14:07,008 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-05-01 07:14:07,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:07,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:07,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:14:07,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:07,054 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-05-01 07:14:07,055 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:07,089 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,349 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,350 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:07,391 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,437 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,489 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,538 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,587 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,637 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,638 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:07,689 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,690 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:07,739 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,795 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,852 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,916 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:07,981 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:07,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,050 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,115 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,116 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:08,179 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,245 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,246 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:08,312 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,377 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,448 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,521 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,594 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,668 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,747 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,823 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,906 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:08,992 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:08,993 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:09,077 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:09,164 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:09,251 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,252 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:09,345 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:09,435 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:09,530 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:09,633 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:09,740 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,741 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:09,844 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:09,940 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:09,942 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:10,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:10,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:10,045 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:14:10,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451516795] [2021-05-01 07:14:10,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1451516795] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:14:10,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:14:10,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2021-05-01 07:14:10,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466285947] [2021-05-01 07:14:10,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-05-01 07:14:10,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:14:10,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-05-01 07:14:10,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=2212, Unknown=1, NotChecked=0, Total=2352 [2021-05-01 07:14:10,046 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 47 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 45 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:14:16,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:14:16,984 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-05-01 07:14:16,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-05-01 07:14:16,985 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 45 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-05-01 07:14:16,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:14:16,986 INFO L225 Difference]: With dead ends: 58 [2021-05-01 07:14:16,986 INFO L226 Difference]: Without dead ends: 53 [2021-05-01 07:14:16,987 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 7306.7ms TimeCoverageRelationStatistics Valid=364, Invalid=8191, Unknown=1, NotChecked=0, Total=8556 [2021-05-01 07:14:16,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-05-01 07:14:17,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-05-01 07:14:17,023 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 07:14:17,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2021-05-01 07:14:17,024 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2021-05-01 07:14:17,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:14:17,024 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2021-05-01 07:14:17,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 47 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 45 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:14:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2021-05-01 07:14:17,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-01 07:14:17,025 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:14:17,025 INFO L519 BasicCegarLoop]: trace histogram [40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:14:17,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-05-01 07:14:17,025 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:14:17,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:14:17,025 INFO L82 PathProgramCache]: Analyzing trace with hash 449183799, now seen corresponding path program 40 times [2021-05-01 07:14:17,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:14:17,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051648508] [2021-05-01 07:14:17,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:14:17,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:14:17,032 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_907) InVars {main_~mid~0=v_main_~mid~0_907} OutVars{main_~mid~0=v_main_~mid~0_907} AuxVars[] AssignedVars[] [2021-05-01 07:14:17,034 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:14:17,035 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,039 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,043 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:14:17,044 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:14:17,047 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:14:17,051 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,055 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,058 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,062 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,067 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,070 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,073 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,076 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,079 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,081 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,082 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:14:17,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:14:17,112 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:14:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:14:17,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:17,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:14:17,138 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:14:17,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:14:17,152 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:14:17,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:14:17,168 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:14:17,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:14:17,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:14:17,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:14:17,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:17,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:14:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:14:17,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:17,233 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 07:14:17,235 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:14:17,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:14:17,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:14:17,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:17,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,276 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:17,330 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:17,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,333 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:17,399 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:17,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,401 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:17,477 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:17,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,479 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:17,539 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:17,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,541 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:17,623 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:17,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,625 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:17,736 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:17,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,739 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:17,852 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:17,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,854 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:17,972 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:17,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:17,975 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:17,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:17,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:18,112 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:18,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:18,114 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:18,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:18,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:18,247 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:18,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:18,249 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:18,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:18,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:18,388 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:18,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:18,390 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:18,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:18,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:18,554 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:18,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:18,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:18,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:18,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:18,715 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:18,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:18,717 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:18,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:18,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:18,902 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:18,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:18,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:18,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:18,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:19,069 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:19,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:19,071 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:19,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:19,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:19,223 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:19,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:19,225 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:19,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:19,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:19,380 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:19,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:19,382 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:19,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:19,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:19,549 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:19,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:19,551 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:19,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:19,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:19,729 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:19,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:19,731 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:19,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:19,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:19,902 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:19,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:19,905 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:19,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:19,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:20,103 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:20,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:20,105 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:20,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:20,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:20,308 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:20,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:20,310 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:20,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:20,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:20,527 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:20,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:20,530 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:20,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:20,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:20,738 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:20,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:20,740 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:20,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:20,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:20,928 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:20,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:20,930 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:20,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:20,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:21,127 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:21,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:21,129 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:21,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:21,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:21,330 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:21,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:21,332 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:21,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:21,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:21,542 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:21,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:21,544 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:21,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:21,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:21,796 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:21,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:21,799 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:21,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:21,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:22,050 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:22,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:22,052 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:22,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:22,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:22,302 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:22,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:22,304 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:22,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:22,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:22,564 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:22,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:22,566 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:22,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:22,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:22,847 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:22,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:22,850 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:22,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:22,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:23,158 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:23,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:23,160 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:23,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:23,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:23,458 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:23,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:23,460 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:23,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:23,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:23,750 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:23,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:23,752 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:23,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:23,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:24,060 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:24,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:24,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:24,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:24,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:24,384 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:24,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:24,386 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:24,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:24,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:24,749 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:14:24,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:24,751 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:14:24,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:14:24,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:14:25,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:25,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:25,099 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:14:25,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051648508] [2021-05-01 07:14:25,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1051648508] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:14:25,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:14:25,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2021-05-01 07:14:25,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900356662] [2021-05-01 07:14:25,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-05-01 07:14:25,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:14:25,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-05-01 07:14:25,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=2308, Unknown=0, NotChecked=0, Total=2450 [2021-05-01 07:14:25,101 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 46 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:14:41,738 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2021-05-01 07:14:42,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:14:42,376 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2021-05-01 07:14:42,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-05-01 07:14:42,379 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 46 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2021-05-01 07:14:42,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:14:42,380 INFO L225 Difference]: With dead ends: 59 [2021-05-01 07:14:42,380 INFO L226 Difference]: Without dead ends: 54 [2021-05-01 07:14:42,381 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 18047.6ms TimeCoverageRelationStatistics Valid=372, Invalid=8558, Unknown=0, NotChecked=0, Total=8930 [2021-05-01 07:14:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-05-01 07:14:42,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-05-01 07:14:42,419 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 07:14:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-05-01 07:14:42,420 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2021-05-01 07:14:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:14:42,420 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-05-01 07:14:42,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 46 states have internal predecessors, (48), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:14:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-05-01 07:14:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-01 07:14:42,420 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:14:42,420 INFO L519 BasicCegarLoop]: trace histogram [41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:14:42,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-01 07:14:42,421 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:14:42,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:14:42,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1074290959, now seen corresponding path program 41 times [2021-05-01 07:14:42,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:14:42,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869555294] [2021-05-01 07:14:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:14:42,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:14:42,448 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_950) InVars {main_~mid~0=v_main_~mid~0_950} OutVars{main_~mid~0=v_main_~mid~0_950} AuxVars[] AssignedVars[] [2021-05-01 07:14:42,451 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:14:42,452 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,458 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,464 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:14:42,466 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:14:42,471 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,476 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,481 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:14:42,486 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,491 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,499 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,505 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,510 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,514 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,520 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,524 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,526 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:14:42,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:42,586 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:14:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:14:42,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:42,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:14:42,608 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:14:42,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:14:42,632 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:14:42,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:14:42,690 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:14:42,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:14:42,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:14:42,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:14:42,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:42,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:14:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:14:42,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:42,807 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 07:14:42,809 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-05-01 07:14:42,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:42,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:42,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 07:14:42,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:14:42,867 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-05-01 07:14:42,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:42,911 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:42,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:43,173 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,175 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:43,222 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,223 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:43,274 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,275 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:43,336 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,338 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:43,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,398 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:43,462 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:43,526 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:43,591 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:43,658 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,660 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:43,730 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,731 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:43,800 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,802 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:43,877 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:43,959 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:43,961 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:44,041 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,043 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:44,123 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,124 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:44,207 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:44,290 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,291 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:44,380 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:44,468 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:44,562 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:44,649 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,651 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:44,738 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:44,848 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:44,945 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:44,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:45,047 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:45,146 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:45,248 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:45,358 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:45,469 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,470 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:45,579 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:45,693 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,694 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:45,815 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,816 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:45,945 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:45,946 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:46,087 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:46,089 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:46,237 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:46,239 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:46,394 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:46,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:14:46,544 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:46,545 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:46,687 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:46,688 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:46,840 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:14:46,842 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:14:47,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:47,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:47,009 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:14:47,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869555294] [2021-05-01 07:14:47,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1869555294] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:14:47,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:14:47,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2021-05-01 07:14:47,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422736024] [2021-05-01 07:14:47,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-05-01 07:14:47,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:14:47,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-05-01 07:14:47,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=2404, Unknown=1, NotChecked=0, Total=2550 [2021-05-01 07:14:47,011 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 47 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:14:59,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:14:59,002 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2021-05-01 07:14:59,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-01 07:14:59,005 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 47 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-05-01 07:14:59,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:14:59,005 INFO L225 Difference]: With dead ends: 60 [2021-05-01 07:14:59,006 INFO L226 Difference]: Without dead ends: 55 [2021-05-01 07:14:59,006 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1341 ImplicationChecksByTransitivity, 10694.0ms TimeCoverageRelationStatistics Valid=380, Invalid=8930, Unknown=2, NotChecked=0, Total=9312 [2021-05-01 07:14:59,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-05-01 07:14:59,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-05-01 07:14:59,043 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 07:14:59,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-05-01 07:14:59,044 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2021-05-01 07:14:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:14:59,044 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-05-01 07:14:59,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 47 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:14:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-05-01 07:14:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-01 07:14:59,044 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:14:59,044 INFO L519 BasicCegarLoop]: trace histogram [42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:14:59,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-05-01 07:14:59,045 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:14:59,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:14:59,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1022223561, now seen corresponding path program 42 times [2021-05-01 07:14:59,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:14:59,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845377969] [2021-05-01 07:14:59,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:14:59,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:14:59,053 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_994) InVars {main_~mid~0=v_main_~mid~0_994} OutVars{main_~mid~0=v_main_~mid~0_994} AuxVars[] AssignedVars[] [2021-05-01 07:14:59,055 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:14:59,069 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,073 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,077 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,081 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,085 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,087 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,092 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,099 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:14:59,100 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:14:59,106 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,111 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:14:59,116 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,120 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,123 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,128 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,129 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:14:59,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:14:59,174 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:14:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:14:59,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:59,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:14:59,199 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:14:59,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:14:59,216 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:14:59,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:14:59,235 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:14:59,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:14:59,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:14:59,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:14:59,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:59,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:14:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:14:59,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:14:59,330 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 07:14:59,331 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:14:59,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:14:59,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:14:59,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:14:59,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,394 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:14:59,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:59,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:14:59,439 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:14:59,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,442 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:14:59,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:59,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:14:59,510 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:14:59,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,512 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:14:59,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:59,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:14:59,585 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:14:59,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,587 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:14:59,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:59,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:14:59,669 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:14:59,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,671 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:14:59,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:59,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:14:59,756 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:14:59,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,757 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:14:59,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:59,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:14:59,845 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:14:59,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,847 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:14:59,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:59,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:14:59,945 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:14:59,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:14:59,947 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:14:59,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:14:59,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:00,056 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:00,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:00,058 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:00,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:00,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:00,171 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:00,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:00,173 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:00,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:00,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:00,321 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:00,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:00,323 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:00,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:00,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:00,466 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:00,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:00,468 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:00,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:00,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:00,630 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:00,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:00,632 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:00,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:00,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:00,767 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:00,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:00,770 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:00,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:00,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:00,932 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:00,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:00,934 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:00,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:00,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:01,106 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:01,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:01,109 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:01,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:01,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:01,284 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:01,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:01,287 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:01,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:01,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:01,457 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:01,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:01,459 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:01,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:01,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:01,672 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:01,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:01,674 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:01,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:01,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:01,919 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:01,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:01,922 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:01,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:01,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:02,181 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:02,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:02,186 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:02,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:02,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:02,472 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:02,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:02,475 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:02,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:02,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:02,791 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:02,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:02,793 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:02,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:02,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:03,042 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:03,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:03,045 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:03,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:03,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:03,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:03,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:03,364 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:03,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:03,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:03,743 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:03,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:03,747 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:03,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:03,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:04,097 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:04,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:04,100 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:04,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:04,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:04,448 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:04,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:04,451 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:04,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:04,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:04,785 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:04,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:04,788 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:04,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:04,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:05,153 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:05,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:05,156 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:05,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:05,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:05,572 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:05,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:05,576 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:05,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:05,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:05,957 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:05,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:05,959 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:05,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:05,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:06,372 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:06,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:06,376 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:06,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:06,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:06,802 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:06,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:06,804 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:06,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:06,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:07,190 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:07,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:07,193 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:07,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:07,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:07,570 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:07,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:07,572 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:07,907 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:07,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:07,909 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:07,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:07,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:08,325 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:08,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:08,327 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:08,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:08,765 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:08,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:08,767 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:08,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:08,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:09,203 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:09,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:09,206 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:09,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:09,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:09,659 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:09,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:09,662 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:09,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:09,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:10,209 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:10,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:10,212 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:10,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:10,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:10,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:10,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:15:10,690 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:15:10,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845377969] [2021-05-01 07:15:10,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [845377969] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:15:10,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:15:10,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2021-05-01 07:15:10,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091924198] [2021-05-01 07:15:10,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-05-01 07:15:10,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:15:10,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-05-01 07:15:10,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=2504, Unknown=0, NotChecked=0, Total=2652 [2021-05-01 07:15:10,691 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 50 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 48 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:15:29,995 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:15:35,212 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2021-05-01 07:15:36,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:15:36,041 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2021-05-01 07:15:36,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-05-01 07:15:36,045 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 48 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-05-01 07:15:36,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:15:36,046 INFO L225 Difference]: With dead ends: 61 [2021-05-01 07:15:36,046 INFO L226 Difference]: Without dead ends: 56 [2021-05-01 07:15:36,047 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1394 ImplicationChecksByTransitivity, 26015.5ms TimeCoverageRelationStatistics Valid=388, Invalid=9314, Unknown=0, NotChecked=0, Total=9702 [2021-05-01 07:15:36,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-05-01 07:15:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-05-01 07:15:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 51 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:15:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-05-01 07:15:36,088 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2021-05-01 07:15:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:15:36,088 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-05-01 07:15:36,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 48 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:15:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-05-01 07:15:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-01 07:15:36,089 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:15:36,089 INFO L519 BasicCegarLoop]: trace histogram [43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:15:36,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-05-01 07:15:36,089 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:15:36,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:15:36,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1589664241, now seen corresponding path program 43 times [2021-05-01 07:15:36,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:15:36,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225847813] [2021-05-01 07:15:36,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:15:36,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:15:36,111 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1039) InVars {main_~mid~0=v_main_~mid~0_1039} OutVars{main_~mid~0=v_main_~mid~0_1039} AuxVars[] AssignedVars[] [2021-05-01 07:15:36,115 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:15:36,117 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,131 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:15:36,138 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,139 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:15:36,146 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:15:36,156 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,163 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,172 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,180 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,185 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,190 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,194 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,198 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,202 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,206 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,208 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:15:36,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:36,287 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:15:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:15:36,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:15:36,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:15:36,322 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:15:36,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:15:36,365 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:15:36,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:15:36,456 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:15:36,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:15:36,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:15:36,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:15:36,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:15:36,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:15:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:15:36,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:15:36,630 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 07:15:36,632 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-05-01 07:15:36,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:36,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:36,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:15:36,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:36,732 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.9 percent of original size [2021-05-01 07:15:36,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:36,815 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:36,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:37,146 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:37,203 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,205 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:37,278 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,279 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:37,349 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:37,415 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:37,499 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:37,579 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,582 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:37,662 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:37,746 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,748 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:37,831 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,832 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:37,924 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:37,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:38,022 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:38,120 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:38,222 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:38,328 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,329 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:38,429 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:38,543 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,545 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:38,666 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:38,782 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,784 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:38,905 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:38,907 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:39,034 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:39,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:39,165 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:39,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:39,305 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:39,306 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:39,434 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:39,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:39,566 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:39,568 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:39,710 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:39,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:39,848 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:39,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:39,984 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:39,986 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:40,138 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:40,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:40,299 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:40,301 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:40,453 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:40,455 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:40,622 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:40,623 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:40,741 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:40,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:40,869 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:40,870 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:40,991 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:40,993 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:41,129 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:41,130 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:15:41,258 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:41,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:41,396 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:41,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:41,537 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:41,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:41,680 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:41,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:41,819 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:15:41,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:15:41,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:41,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:15:41,972 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:15:41,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225847813] [2021-05-01 07:15:41,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [225847813] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:15:41,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:15:41,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2021-05-01 07:15:41,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753033026] [2021-05-01 07:15:41,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-05-01 07:15:41,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:15:41,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-05-01 07:15:41,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2604, Unknown=1, NotChecked=0, Total=2756 [2021-05-01 07:15:41,974 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 49 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:15:56,360 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-05-01 07:15:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:15:56,866 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2021-05-01 07:15:56,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-01 07:15:56,872 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 1.02) internal successors, (51), 49 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2021-05-01 07:15:56,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:15:56,873 INFO L225 Difference]: With dead ends: 62 [2021-05-01 07:15:56,873 INFO L226 Difference]: Without dead ends: 57 [2021-05-01 07:15:56,874 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 14204.8ms TimeCoverageRelationStatistics Valid=396, Invalid=9702, Unknown=2, NotChecked=0, Total=10100 [2021-05-01 07:15:56,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-05-01 07:15:56,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-05-01 07:15:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 52 states have internal predecessors, (53), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:15:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2021-05-01 07:15:56,921 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2021-05-01 07:15:56,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:15:56,921 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2021-05-01 07:15:56,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 51 states, 50 states have (on average 1.02) internal successors, (51), 49 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:15:56,921 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2021-05-01 07:15:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-01 07:15:56,921 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:15:56,922 INFO L519 BasicCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:15:56,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-05-01 07:15:56,922 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:15:56,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:15:56,922 INFO L82 PathProgramCache]: Analyzing trace with hash -2000456137, now seen corresponding path program 44 times [2021-05-01 07:15:56,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:15:56,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366835897] [2021-05-01 07:15:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:15:56,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:56,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:15:56,941 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1085) InVars {main_~mid~0=v_main_~mid~0_1085} OutVars{main_~mid~0=v_main_~mid~0_1085} AuxVars[] AssignedVars[] [2021-05-01 07:15:56,944 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:15:56,953 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:56,961 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:56,969 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:56,977 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:56,987 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:56,989 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:56,999 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:15:57,009 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,011 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:15:57,020 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,029 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,038 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:15:57,047 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,055 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,063 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,065 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:15:57,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:15:57,152 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:15:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:15:57,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:15:57,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:15:57,182 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:15:57,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:15:57,221 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:15:57,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:15:57,275 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:15:57,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:15:57,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:15:57,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:15:57,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:15:57,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:15:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:15:57,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:15:57,449 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 07:15:57,451 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:15:57,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:57,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:15:57,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:15:57,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:15:57,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:57,536 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:57,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:57,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:57,633 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:57,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:57,636 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:57,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:57,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:57,738 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:57,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:57,741 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:57,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:57,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:57,871 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:57,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:57,874 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:57,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:57,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:58,018 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:58,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:58,021 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:58,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:58,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:58,174 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:58,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:58,178 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:58,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:58,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:58,336 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:58,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:58,340 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:58,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:58,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:58,519 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:58,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:58,522 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:58,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:58,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:58,711 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:58,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:58,714 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:58,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:58,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:58,909 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:58,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:58,912 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:58,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:58,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:59,099 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:59,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:59,102 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:59,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:59,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:59,287 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:59,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:59,289 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:59,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:59,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:59,497 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:59,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:59,500 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:59,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:59,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:59,731 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:59,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:59,734 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:59,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:59,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:15:59,956 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:15:59,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:15:59,959 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:15:59,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:15:59,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:00,216 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:00,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:00,219 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:00,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:00,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:00,451 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:00,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:00,453 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:00,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:00,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:00,742 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:00,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:00,745 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:00,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:00,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:01,029 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:01,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:01,032 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:01,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:01,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:01,324 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:01,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:01,328 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:01,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:01,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:01,692 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:01,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:01,695 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:01,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:01,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:02,068 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:02,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:02,071 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:02,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:02,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:02,414 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:02,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:02,417 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:02,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:02,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:02,712 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:02,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:02,715 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:02,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:02,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:03,119 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:03,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:03,121 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:03,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:03,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:03,485 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:03,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:03,488 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:03,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:03,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:03,898 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:03,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:03,901 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:03,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:03,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:04,299 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:04,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:04,302 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:04,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:04,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:04,723 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:04,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:04,726 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:04,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:05,128 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:05,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:05,143 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:05,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:05,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:05,686 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:05,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:05,689 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:05,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:05,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:06,122 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:06,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:06,125 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:06,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:06,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:06,580 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:06,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:06,582 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:06,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:06,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:07,045 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:07,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:07,048 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:07,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:07,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:07,596 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:07,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:07,599 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:07,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:07,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:08,159 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:08,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:08,162 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:08,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:08,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:08,686 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:08,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:08,689 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:08,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:08,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:09,238 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:09,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:09,241 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:09,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:09,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:09,819 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:09,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:09,822 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:09,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:09,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:10,384 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:10,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:10,386 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:10,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:10,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:10,774 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:10,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:10,776 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:10,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:10,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:11,191 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:11,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:11,193 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:11,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:11,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:11,617 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:11,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:11,620 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:11,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:11,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:12,264 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:16:12,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:12,267 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:16:12,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:16:12,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:16:12,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:12,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:16:12,934 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:16:12,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366835897] [2021-05-01 07:16:12,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1366835897] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:16:12,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:16:12,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2021-05-01 07:16:12,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706674738] [2021-05-01 07:16:12,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-05-01 07:16:12,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:16:12,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-05-01 07:16:12,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=2708, Unknown=0, NotChecked=0, Total=2862 [2021-05-01 07:16:12,935 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 52 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 50 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:16:20,404 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:22,458 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:23,106 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:25,067 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:25,799 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:26,498 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:29,902 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:31,421 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:35,596 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:16:44,978 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2021-05-01 07:16:45,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:16:45,886 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-05-01 07:16:45,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-01 07:16:45,891 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 50 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2021-05-01 07:16:45,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:16:45,892 INFO L225 Difference]: With dead ends: 63 [2021-05-01 07:16:45,892 INFO L226 Difference]: Without dead ends: 58 [2021-05-01 07:16:45,893 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1503 ImplicationChecksByTransitivity, 34527.2ms TimeCoverageRelationStatistics Valid=404, Invalid=10102, Unknown=0, NotChecked=0, Total=10506 [2021-05-01 07:16:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-05-01 07:16:45,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-05-01 07:16:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:16:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2021-05-01 07:16:45,937 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2021-05-01 07:16:45,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:16:45,937 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2021-05-01 07:16:45,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 50 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:16:45,937 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2021-05-01 07:16:45,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-01 07:16:45,938 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:16:45,938 INFO L519 BasicCegarLoop]: trace histogram [45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:16:45,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-05-01 07:16:45,938 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:16:45,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:16:45,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1850103025, now seen corresponding path program 45 times [2021-05-01 07:16:45,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:16:45,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540640161] [2021-05-01 07:16:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:16:45,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:45,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:16:45,949 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1132) InVars {main_~mid~0=v_main_~mid~0_1132} OutVars{main_~mid~0=v_main_~mid~0_1132} AuxVars[] AssignedVars[] [2021-05-01 07:16:45,951 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:16:45,957 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:45,963 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:45,969 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:45,976 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:45,983 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:45,985 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:45,995 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:16:46,002 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,004 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:16:46,011 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:16:46,021 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,030 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,038 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,046 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,055 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,056 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:16:46,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:46,130 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:16:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:16:46,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:16:46,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:16:46,160 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:16:46,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:16:46,191 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:16:46,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:16:46,230 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:16:46,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:16:46,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:16:46,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:16:46,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:16:46,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:16:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:16:46,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:16:46,384 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 07:16:46,386 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:16:46,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:46,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:16:46,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:16:46,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:16:46,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:46,464 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:46,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:46,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:46,569 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:46,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:46,571 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:46,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:46,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:46,668 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:46,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:46,671 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:46,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:46,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:46,773 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:46,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:46,776 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:46,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:46,915 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:46,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:46,918 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:46,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:46,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:47,052 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:47,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:47,055 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:47,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:47,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:47,218 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:47,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:47,222 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:47,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:47,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:47,404 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:47,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:47,407 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:47,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:47,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:47,585 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:47,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:47,588 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:47,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:47,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:47,821 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:47,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:47,824 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:47,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:47,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:48,032 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:48,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:48,035 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:48,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:48,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:48,252 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:48,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:48,255 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:48,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:48,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:48,523 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:48,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:48,526 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:48,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:48,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:48,724 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:48,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:48,726 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:48,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:48,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:48,906 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:48,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:48,908 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:48,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:48,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:49,104 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:49,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:49,116 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:49,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:49,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:49,375 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:49,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:49,378 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:49,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:49,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:49,609 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:49,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:49,611 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:49,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:49,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:49,857 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:49,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:49,860 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:49,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:49,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:50,110 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:50,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:50,113 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:50,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:50,411 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:50,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:50,415 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:50,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:50,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:50,852 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:50,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:50,856 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:50,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:50,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:51,284 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:51,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:51,287 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:51,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:51,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:51,687 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:51,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:51,690 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:51,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:51,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:52,070 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:52,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:52,073 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:52,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:52,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:52,486 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:52,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:52,489 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:52,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:52,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:52,867 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:52,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:52,870 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:52,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:52,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:53,244 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:53,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:53,247 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:53,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:53,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:53,608 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:53,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:53,610 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:53,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:53,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:54,008 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:54,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:54,011 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:54,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:54,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:54,388 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:54,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:54,390 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:54,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:54,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:54,796 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:54,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:54,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:54,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:54,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:55,265 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:55,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:55,268 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:55,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:55,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:55,727 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:55,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:55,729 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:55,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:55,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:56,199 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:56,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:56,202 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:56,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:56,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:56,732 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:56,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:56,735 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:56,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:56,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:57,319 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:57,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:57,322 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:57,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:57,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:57,875 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:57,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:57,877 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:57,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:57,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:58,430 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:58,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:58,433 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:58,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:58,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:58,983 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:58,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:58,987 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:58,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:58,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:16:59,545 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:16:59,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:16:59,548 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:16:59,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:16:59,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:00,115 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:00,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:00,118 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:00,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:00,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:00,675 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:00,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:00,678 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:00,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:00,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:01,283 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:01,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:01,287 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:01,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:01,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:01,966 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:01,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:01,969 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:01,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:01,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:02,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:02,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:17:02,632 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:17:02,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540640161] [2021-05-01 07:17:02,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [540640161] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:17:02,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:17:02,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2021-05-01 07:17:02,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122341480] [2021-05-01 07:17:02,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-01 07:17:02,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:17:02,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-01 07:17:02,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=2813, Unknown=0, NotChecked=0, Total=2970 [2021-05-01 07:17:02,634 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 53 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 51 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:17:07,409 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:09,094 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:10,020 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:10,996 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:11,969 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:12,928 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:13,837 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:14,700 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:15,580 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:17,108 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:17,924 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:18,667 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:19,504 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:20,322 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:21,054 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:21,812 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:22,571 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:23,362 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:24,105 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:27,913 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:28,708 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:29,449 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:32,818 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:33,793 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:34,715 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:35,573 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:36,378 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:37,237 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:38,044 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:17:39,786 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-05-01 07:17:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:17:40,733 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2021-05-01 07:17:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-01 07:17:40,739 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 51 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2021-05-01 07:17:40,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:17:40,740 INFO L225 Difference]: With dead ends: 64 [2021-05-01 07:17:40,740 INFO L226 Difference]: Without dead ends: 59 [2021-05-01 07:17:40,741 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 38884.0ms TimeCoverageRelationStatistics Valid=412, Invalid=10508, Unknown=0, NotChecked=0, Total=10920 [2021-05-01 07:17:40,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-05-01 07:17:40,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-05-01 07:17:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 54 states have internal predecessors, (55), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:17:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2021-05-01 07:17:40,804 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2021-05-01 07:17:40,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:17:40,804 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2021-05-01 07:17:40,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 51 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:17:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2021-05-01 07:17:40,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-01 07:17:40,805 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:17:40,805 INFO L519 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:17:40,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-05-01 07:17:40,805 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:17:40,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:17:40,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1484123849, now seen corresponding path program 46 times [2021-05-01 07:17:40,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:17:40,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392493153] [2021-05-01 07:17:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:17:40,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:17:40,822 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1180) InVars {main_~mid~0=v_main_~mid~0_1180} OutVars{main_~mid~0=v_main_~mid~0_1180} AuxVars[] AssignedVars[] [2021-05-01 07:17:40,824 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:17:40,833 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,842 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,850 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,858 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,867 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,869 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,878 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,886 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:17:40,887 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:17:40,893 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:17:40,902 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,910 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,916 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,925 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,932 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:40,933 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:17:41,053 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-01 07:17:41,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:41,059 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:17:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:17:41,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:17:41,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:17:41,095 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:17:41,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:17:41,139 INFO L142 QuantifierPusher]: treesize reduction 7, result has 75.0 percent of original size [2021-05-01 07:17:41,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:17:41,240 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:17:41,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:17:41,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:17:41,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:17:41,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:17:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:17:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:17:41,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:17:41,443 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 07:17:41,446 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:17:41,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:41,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:17:41,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:17:41,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:17:41,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:41,578 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:41,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:41,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:41,700 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:41,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:41,703 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:41,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:41,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:41,825 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:41,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:41,829 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:41,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:41,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:41,967 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:41,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:41,970 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:41,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:41,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:42,135 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:42,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:42,146 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:42,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:42,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:42,338 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:42,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:42,341 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:42,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:42,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:42,524 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:42,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:42,528 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:42,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:42,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:42,708 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:42,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:42,711 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:42,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:42,958 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:42,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:42,961 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:42,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:42,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:43,197 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:43,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:43,200 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:43,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:43,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:43,433 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:43,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:43,437 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:43,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:43,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:43,679 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:43,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:43,682 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:43,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:43,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:43,915 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:43,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:43,918 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:43,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:43,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:44,172 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:44,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:44,175 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:44,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:44,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:44,411 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:44,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:44,413 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:44,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:44,696 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:44,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:44,698 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:44,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:44,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:44,997 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:44,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:45,001 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:45,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:45,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:45,296 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:45,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:45,299 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:45,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:45,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:45,647 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:45,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:45,650 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:45,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:45,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:46,050 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:46,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:46,053 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:46,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:46,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:46,433 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:46,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:46,436 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:46,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:46,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:46,830 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:46,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:46,833 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:46,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:46,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:47,263 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:47,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:47,266 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:47,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:47,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:47,678 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:47,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:47,681 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:47,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:47,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:48,093 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:48,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:48,096 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:48,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:48,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:48,554 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:48,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:48,564 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:48,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:49,065 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:49,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:49,068 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:49,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:49,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:49,473 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:49,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:49,475 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:49,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:49,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:49,897 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:49,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:49,900 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:49,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:49,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:50,296 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:50,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:50,299 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:50,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:50,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:50,716 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:50,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:50,718 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:50,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:50,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:51,105 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:51,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:51,107 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:51,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:51,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:51,630 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:51,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:51,634 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:51,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:51,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:52,270 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:52,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:52,274 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:52,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:52,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:52,919 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:52,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:52,923 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:52,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:52,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:53,606 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:53,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:53,609 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:53,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:53,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:54,165 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:54,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:54,168 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:54,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:54,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:54,750 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:54,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:54,753 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:54,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:54,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:55,670 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:55,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:55,673 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:55,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:55,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:56,244 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:56,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:56,247 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:56,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:56,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:56,820 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:56,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:56,823 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:56,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:56,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:57,354 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:57,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:57,357 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:57,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:57,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:57,941 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:57,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:57,944 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:57,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:57,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:58,568 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:58,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:58,571 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:58,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:58,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:59,173 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:59,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:59,176 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:59,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:59,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:17:59,791 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:17:59,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:17:59,794 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:17:59,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:17:59,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:18:00,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:00,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:18:00,475 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:18:00,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392493153] [2021-05-01 07:18:00,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [392493153] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:18:00,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:18:00,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2021-05-01 07:18:00,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006676318] [2021-05-01 07:18:00,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-05-01 07:18:00,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:18:00,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-05-01 07:18:00,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=2920, Unknown=0, NotChecked=0, Total=3080 [2021-05-01 07:18:00,477 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:18:03,398 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:04,154 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:05,739 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:06,530 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:07,449 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:10,870 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:11,655 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:12,635 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:13,599 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:14,609 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:15,555 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:16,504 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:17,425 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:18,347 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:19,250 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:20,158 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:21,760 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:22,671 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:23,603 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:24,488 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:25,449 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:26,485 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:27,398 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:28,449 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:31,116 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:32,058 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:32,956 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:33,931 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:34,872 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:35,851 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:36,988 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:38,063 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:39,012 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:18:42,261 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-05-01 07:18:43,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:18:43,700 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2021-05-01 07:18:43,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-01 07:18:43,708 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2021-05-01 07:18:43,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:18:43,708 INFO L225 Difference]: With dead ends: 65 [2021-05-01 07:18:43,709 INFO L226 Difference]: Without dead ends: 60 [2021-05-01 07:18:43,710 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1616 ImplicationChecksByTransitivity, 44556.1ms TimeCoverageRelationStatistics Valid=420, Invalid=10922, Unknown=0, NotChecked=0, Total=11342 [2021-05-01 07:18:43,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-05-01 07:18:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-05-01 07:18:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:18:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2021-05-01 07:18:43,762 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2021-05-01 07:18:43,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:18:43,762 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2021-05-01 07:18:43,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 52 states have internal predecessors, (54), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:18:43,762 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2021-05-01 07:18:43,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-01 07:18:43,763 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:18:43,763 INFO L519 BasicCegarLoop]: trace histogram [47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:18:43,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-05-01 07:18:43,763 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:18:43,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:18:43,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1271296015, now seen corresponding path program 47 times [2021-05-01 07:18:43,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:18:43,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503679834] [2021-05-01 07:18:43,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:18:43,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:18:43,784 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1229) InVars {main_~mid~0=v_main_~mid~0_1229} OutVars{main_~mid~0=v_main_~mid~0_1229} AuxVars[] AssignedVars[] [2021-05-01 07:18:43,788 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:18:43,791 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,802 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,818 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:18:43,820 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:18:43,829 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:18:43,843 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,856 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,867 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,884 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,895 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,906 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,916 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,927 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,940 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,950 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:43,953 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:18:44,088 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-01 07:18:44,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:18:44,094 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:18:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:18:44,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:18:44,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:18:44,131 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:18:44,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:18:44,178 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-05-01 07:18:44,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:18:44,282 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-05-01 07:18:44,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:18:44,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:18:44,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:18:44,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:18:44,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:18:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:18:44,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:18:44,492 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 07:18:44,496 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:18:44,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:44,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-05-01 07:18:44,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:18:44,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:18:44,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:44,613 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:44,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:44,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:44,755 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:44,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:44,759 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:44,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:44,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:44,920 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:44,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:44,924 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:44,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:44,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:45,091 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:45,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:45,094 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:45,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:45,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:45,275 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:45,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:45,280 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:45,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:45,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:45,509 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:45,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:45,512 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:45,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:45,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:45,736 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:45,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:45,739 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:45,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:45,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:46,009 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:46,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:46,014 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:46,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:46,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:46,275 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:46,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:46,278 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:46,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:46,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:46,552 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:46,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:46,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:46,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:46,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:46,836 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:46,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:46,840 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:46,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:46,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:47,146 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:47,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:47,150 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:47,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:47,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:47,535 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:47,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:47,539 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:47,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:47,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:47,909 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:47,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:47,914 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:47,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:47,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:48,230 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:48,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:48,233 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:48,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:48,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:48,558 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:48,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:48,561 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:48,880 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:48,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:48,884 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:48,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:48,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:49,207 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:49,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:49,210 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:49,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:49,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:49,578 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:49,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:49,581 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:49,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:49,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:49,942 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:49,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:49,945 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:49,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:50,359 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:50,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:50,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:50,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:50,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:50,801 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:50,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:50,805 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:50,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:50,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:51,232 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:51,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:51,236 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:51,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:51,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:51,686 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:51,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:51,689 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:51,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:51,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:52,269 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:52,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:52,273 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:52,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:52,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:52,884 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:52,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:52,888 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:52,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:52,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:53,487 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:53,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:53,490 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:53,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:53,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:54,094 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:54,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:54,098 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:54,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:54,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:54,690 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:54,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:54,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:54,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:54,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:55,333 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:55,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:55,337 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:55,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:55,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:55,985 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:55,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:55,990 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:55,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:55,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:56,785 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:56,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:56,788 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:56,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:56,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:57,458 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:57,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:57,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:57,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:57,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:58,152 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:58,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:58,156 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:58,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:58,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:58,861 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:58,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:58,865 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:58,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:58,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:18:59,525 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:18:59,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:18:59,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:18:59,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:18:59,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:00,214 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:00,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:00,219 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:00,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:00,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:00,971 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:00,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:00,975 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:00,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:00,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:01,600 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:01,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:01,603 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:01,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:01,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:02,186 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:02,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:02,189 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:02,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:02,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:02,830 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:02,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:02,833 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:02,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:03,600 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:03,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:03,605 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:03,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:04,546 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:04,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:04,550 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:04,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:04,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:05,534 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:05,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:05,538 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:05,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:05,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:06,554 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:06,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:06,558 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:06,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:06,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:07,636 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:07,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:07,640 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:07,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:07,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:08,588 INFO L142 QuantifierPusher]: treesize reduction 5, result has 94.1 percent of original size [2021-05-01 07:19:08,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:19:08,592 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-05-01 07:19:08,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-05-01 07:19:08,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-05-01 07:19:09,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:19:09,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:19:09,436 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:19:09,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503679834] [2021-05-01 07:19:09,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [503679834] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:19:09,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:19:09,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2021-05-01 07:19:09,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363931503] [2021-05-01 07:19:09,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-05-01 07:19:09,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:19:09,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-05-01 07:19:09,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=3029, Unknown=0, NotChecked=0, Total=3192 [2021-05-01 07:19:09,437 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 53 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:19:11,102 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-05-01 07:19:11,973 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-05-01 07:19:13,028 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:19:14,032 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:15,043 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:16,242 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:17,385 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:18,447 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:19,657 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:20,784 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:21,941 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:23,102 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:25,054 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:25,827 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:26,766 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:27,986 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:29,072 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:30,156 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:31,238 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:32,146 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:33,205 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:34,197 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:35,325 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:36,701 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:38,034 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:39,067 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:39,983 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:40,922 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:41,849 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:42,945 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:44,035 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:44,903 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:45,889 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:46,812 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:47,678 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:48,683 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:49,598 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:50,639 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:51,638 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:52,818 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:53,969 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:55,007 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:55,975 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:57,028 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:58,055 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:59,035 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:19:59,986 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 07:20:01,182 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2021-05-01 07:20:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:20:02,623 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2021-05-01 07:20:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-01 07:20:02,630 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 53 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-05-01 07:20:02,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:20:02,631 INFO L225 Difference]: With dead ends: 66 [2021-05-01 07:20:02,631 INFO L226 Difference]: Without dead ends: 61 [2021-05-01 07:20:02,632 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1674 ImplicationChecksByTransitivity, 56441.2ms TimeCoverageRelationStatistics Valid=428, Invalid=11344, Unknown=0, NotChecked=0, Total=11772 [2021-05-01 07:20:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-05-01 07:20:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-05-01 07:20:02,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 56 states have internal predecessors, (57), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:20:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2021-05-01 07:20:02,693 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2021-05-01 07:20:02,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:20:02,694 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2021-05-01 07:20:02,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 53 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:20:02,694 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2021-05-01 07:20:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-01 07:20:02,694 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:20:02,694 INFO L519 BasicCegarLoop]: trace histogram [48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:20:02,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-05-01 07:20:02,695 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:20:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:20:02,695 INFO L82 PathProgramCache]: Analyzing trace with hash 789965879, now seen corresponding path program 48 times [2021-05-01 07:20:02,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:20:02,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311135855] [2021-05-01 07:20:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:20:02,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:20:02,727 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1279) InVars {main_~mid~0=v_main_~mid~0_1279} OutVars{main_~mid~0=v_main_~mid~0_1279} AuxVars[] AssignedVars[] [2021-05-01 07:20:02,730 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:20:02,733 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,746 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:20:02,756 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,758 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:20:02,767 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:20:02,778 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,792 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,802 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,813 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,824 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,834 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,843 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,857 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,869 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,880 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,883 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:20:02,985 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-01 07:20:02,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:02,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:02,991 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:20:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:20:03,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:03,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:20:03,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:03,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:20:03,026 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:20:03,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:20:03,074 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:20:03,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:20:03,150 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:20:03,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:20:03,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:03,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:20:03,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:03,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:20:03,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:03,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:20:03,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:20:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:20:03,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:03,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:20:03,436 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 07:20:03,440 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:20:03,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:03,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:03,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:20:03,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:20:03,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:03,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:03,594 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:03,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:03,750 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:03,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:03,754 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:03,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:03,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:03,922 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:03,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:03,926 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:03,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:03,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:04,119 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:04,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:04,122 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:04,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:04,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:04,324 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:04,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:04,328 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:04,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:04,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:04,566 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:04,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:04,570 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:04,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:04,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:04,835 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:04,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:04,840 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:04,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:04,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:05,120 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:05,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:05,124 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:05,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:05,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:05,441 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:05,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:05,445 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:05,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:05,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:05,757 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:05,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:05,761 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:05,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:05,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:06,109 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:06,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:06,113 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:06,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:06,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:06,472 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:06,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:06,476 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:06,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:06,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:06,862 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:06,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:06,867 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:06,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:06,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:07,354 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-01 07:20:07,359 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:07,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:07,364 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:07,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:07,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:07,724 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:07,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:07,728 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:07,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:07,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:08,184 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:08,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:08,187 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:08,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:08,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:08,520 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:08,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:08,523 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:08,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:08,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:08,920 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:08,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:08,924 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:08,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:09,371 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:09,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:09,375 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:09,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:09,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:09,839 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:09,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:09,843 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:09,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:09,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:10,260 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:10,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:10,265 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:10,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:10,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:10,714 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:10,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:10,716 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:10,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:10,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:11,108 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:11,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:11,111 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:11,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:11,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:11,569 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:11,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:11,572 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:11,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:11,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:12,064 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:12,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:12,068 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:12,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:12,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:12,584 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:12,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:12,588 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:12,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:12,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:13,039 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:13,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:13,043 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:13,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:13,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:13,568 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:13,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:13,572 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:13,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:13,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:14,090 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:14,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:14,095 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:14,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:14,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:14,705 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:14,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:14,709 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:14,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:14,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:15,342 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:15,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:15,346 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:15,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:15,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:15,959 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:15,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:15,961 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:15,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:15,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:16,499 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:16,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:16,502 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:16,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:16,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:16,977 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:16,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:16,980 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:16,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:16,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:17,461 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:17,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:17,465 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:17,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:17,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:18,012 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:18,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:18,015 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:18,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:18,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:18,658 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:18,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:18,661 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:18,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:18,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:19,242 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:19,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:19,245 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:19,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:19,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:19,824 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:19,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:19,827 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:19,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:19,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:20,471 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:20,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:20,474 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:20,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:20,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:21,128 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:21,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:21,131 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:21,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:21,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:21,716 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:21,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:21,720 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:21,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:21,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:22,458 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:22,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:22,462 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:22,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:22,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:23,218 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:23,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:23,221 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:23,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:23,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:23,899 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:23,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:23,903 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:23,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:23,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:24,708 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:24,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:24,712 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:24,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:24,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:25,574 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:25,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:25,577 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:25,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:25,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:26,342 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:20:26,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:20:26,346 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:20:26,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:20:26,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:20:27,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:20:27,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:20:27,208 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:20:27,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311135855] [2021-05-01 07:20:27,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1311135855] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:20:27,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:20:27,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2021-05-01 07:20:27,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435137289] [2021-05-01 07:20:27,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-05-01 07:20:27,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:20:27,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-05-01 07:20:27,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=3140, Unknown=0, NotChecked=0, Total=3306 [2021-05-01 07:20:27,210 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 54 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:20:29,220 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:20:29,979 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:30,847 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:31,822 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:32,654 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:33,591 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:34,435 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:35,345 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:36,331 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:37,196 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:38,181 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:39,095 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:40,018 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:41,072 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:42,027 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:43,066 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:43,905 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:44,813 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:45,810 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:46,741 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:47,895 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:49,110 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:50,464 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:51,777 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:52,900 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:54,033 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:56,502 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:57,399 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:58,487 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:20:59,418 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:00,421 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:01,353 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:02,460 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:03,586 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:04,636 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:05,661 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:06,825 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:07,947 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:08,943 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:10,244 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:11,476 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:12,557 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:13,418 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:14,347 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:15,222 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:21:16,362 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-05-01 07:21:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:21:17,718 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-05-01 07:21:17,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-05-01 07:21:17,726 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 54 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2021-05-01 07:21:17,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:21:17,726 INFO L225 Difference]: With dead ends: 67 [2021-05-01 07:21:17,726 INFO L226 Difference]: Without dead ends: 62 [2021-05-01 07:21:17,728 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1733 ImplicationChecksByTransitivity, 53431.2ms TimeCoverageRelationStatistics Valid=436, Invalid=11774, Unknown=0, NotChecked=0, Total=12210 [2021-05-01 07:21:17,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-05-01 07:21:17,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-05-01 07:21:17,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 57 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:21:17,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2021-05-01 07:21:17,792 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2021-05-01 07:21:17,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:21:17,792 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2021-05-01 07:21:17,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 54 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:21:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2021-05-01 07:21:17,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-01 07:21:17,793 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:21:17,793 INFO L519 BasicCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:21:17,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-05-01 07:21:17,793 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:21:17,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:21:17,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1246366449, now seen corresponding path program 49 times [2021-05-01 07:21:17,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:21:17,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565349424] [2021-05-01 07:21:17,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:21:17,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:21:17,811 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1330) InVars {main_~mid~0=v_main_~mid~0_1330} OutVars{main_~mid~0=v_main_~mid~0_1330} AuxVars[] AssignedVars[] [2021-05-01 07:21:17,817 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:21:17,828 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,840 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,849 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,859 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,869 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,871 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,886 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:21:17,895 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,897 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:21:17,904 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,913 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,924 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,931 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:21:17,938 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,949 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:17,951 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:21:18,085 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-01 07:21:18,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:21:18,093 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:21:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:18,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:18,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:21:18,135 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:21:18,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:21:18,195 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:21:18,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:21:18,269 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:21:18,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:21:18,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:18,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:21:18,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:18,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:21:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:21:18,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:18,469 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 07:21:18,471 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:21:18,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:18,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-05-01 07:21:18,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-05-01 07:21:18,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:18,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:18,578 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:18,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:18,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:18,705 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:18,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:18,709 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:18,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:18,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:18,842 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:18,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:18,845 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:18,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:18,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:19,023 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:19,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:19,026 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:19,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:19,211 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:19,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:19,214 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:19,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:19,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:19,408 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:19,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:19,411 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:19,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:19,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:19,621 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:19,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:19,624 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:19,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:19,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:19,866 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:19,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:19,870 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:19,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:19,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:20,108 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:20,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:20,112 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:20,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:20,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:20,413 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:20,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:20,417 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:20,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:20,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:20,755 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:20,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:20,759 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:20,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:20,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:21,052 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:21,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:21,055 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:21,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:21,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:21,371 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:21,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:21,374 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:21,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:21,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:21,709 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:21,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:21,712 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:21,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:21,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:22,075 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:22,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:22,079 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:22,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:22,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:22,460 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:22,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:22,464 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:22,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:22,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:22,818 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:22,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:22,829 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:22,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:22,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:23,182 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:23,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:23,185 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:23,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:23,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:23,594 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:23,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:23,597 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:23,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:23,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:24,002 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:24,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:24,006 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:24,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:24,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:24,510 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:24,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:24,514 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:24,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:24,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:25,014 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:25,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:25,018 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:25,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:25,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:25,505 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:25,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:25,509 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:25,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:25,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:25,977 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:25,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:25,980 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:25,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:25,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:26,477 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:26,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:26,480 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:26,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:26,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:27,050 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:27,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:27,054 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:27,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:27,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:27,625 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:27,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:27,628 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:27,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:27,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:28,183 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:28,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:28,187 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:28,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:28,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:28,752 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:28,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:28,755 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:28,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:28,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:29,338 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:29,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:29,342 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:29,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:29,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:29,976 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:29,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:29,980 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:29,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:29,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:30,641 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:30,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:30,644 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:30,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:30,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:31,258 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:31,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:31,261 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:31,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:31,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:31,923 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:31,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:31,927 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:31,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:31,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:32,621 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:32,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:32,625 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:32,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:32,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:33,434 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:33,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:33,438 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:33,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:33,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:34,206 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:34,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:34,209 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:34,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:34,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:34,933 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:34,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:34,937 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:34,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:34,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:35,740 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:35,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:35,744 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:35,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:35,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:36,620 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:36,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:36,623 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:36,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:36,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:37,496 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:37,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:37,500 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:37,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:37,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:38,314 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:38,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:38,317 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:38,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:38,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:38,886 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:38,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:38,888 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:38,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:38,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:39,455 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:39,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:39,458 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:39,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:39,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:40,151 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:40,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:40,154 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:40,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:40,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:40,930 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:40,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:40,933 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:40,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:40,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:41,895 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:41,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:41,899 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:41,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:41,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:42,984 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:42,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:42,988 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:42,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:42,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:44,080 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-05-01 07:21:44,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:21:44,084 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-05-01 07:21:44,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:21:44,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-05-01 07:21:45,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:21:45,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:21:45,189 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:21:45,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565349424] [2021-05-01 07:21:45,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [565349424] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:21:45,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:21:45,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2021-05-01 07:21:45,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044014478] [2021-05-01 07:21:45,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-05-01 07:21:45,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:21:45,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-05-01 07:21:45,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=3253, Unknown=0, NotChecked=0, Total=3422 [2021-05-01 07:21:45,190 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 55 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:21:47,386 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-05-01 07:21:48,385 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-05-01 07:21:49,248 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:50,054 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:50,930 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:52,815 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:53,720 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:54,822 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:55,837 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:56,910 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:57,907 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:21:59,817 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:00,727 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:01,676 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:02,583 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:03,592 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:04,591 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:05,707 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:06,675 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:07,601 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:10,050 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:11,053 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:12,287 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:13,542 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:14,547 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:15,423 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:16,333 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:17,247 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:19,240 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:20,120 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:21,029 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:21,996 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:23,010 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:23,993 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:24,956 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:25,989 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:27,005 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:27,959 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:29,044 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:30,145 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:31,137 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:32,148 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:33,230 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:34,289 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:22:35,481 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-05-01 07:22:36,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:22:36,727 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2021-05-01 07:22:36,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-01 07:22:36,734 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 55 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2021-05-01 07:22:36,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:22:36,735 INFO L225 Difference]: With dead ends: 68 [2021-05-01 07:22:36,735 INFO L226 Difference]: Without dead ends: 63 [2021-05-01 07:22:36,736 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1793 ImplicationChecksByTransitivity, 56736.2ms TimeCoverageRelationStatistics Valid=444, Invalid=12212, Unknown=0, NotChecked=0, Total=12656 [2021-05-01 07:22:36,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-05-01 07:22:36,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-05-01 07:22:36,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 58 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:22:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2021-05-01 07:22:36,804 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2021-05-01 07:22:36,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:22:36,804 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2021-05-01 07:22:36,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 55 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:22:36,804 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2021-05-01 07:22:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-05-01 07:22:36,805 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:22:36,805 INFO L519 BasicCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:22:36,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-05-01 07:22:36,805 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:22:36,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:22:36,806 INFO L82 PathProgramCache]: Analyzing trace with hash 51840823, now seen corresponding path program 50 times [2021-05-01 07:22:36,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:22:36,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417120532] [2021-05-01 07:22:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:22:36,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:22:36,825 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1382) InVars {main_~mid~0=v_main_~mid~0_1382} OutVars{main_~mid~0=v_main_~mid~0_1382} AuxVars[] AssignedVars[] [2021-05-01 07:22:36,829 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:22:36,831 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,844 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:36,852 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,854 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:22:36,863 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,872 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,880 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,888 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:22:36,895 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,908 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,917 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,925 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,932 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,940 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,948 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:36,950 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:22:37,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:37,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:22:37,053 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:22:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:37,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:37,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:37,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:22:37,086 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:22:37,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:22:37,136 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-05-01 07:22:37,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:22:37,250 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:22:37,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:22:37,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:37,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:37,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:37,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:22:37,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:37,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:37,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:22:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:22:37,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:37,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:37,477 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 07:22:37,480 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-05-01 07:22:37,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:22:37,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:37,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 07:22:37,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:22:37,601 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-05-01 07:22:37,604 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:37,694 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:37,696 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:38,008 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:38,010 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:38,130 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:38,133 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:38,261 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:38,265 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:38,411 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:38,414 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:38,551 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:38,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:38,705 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:38,708 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:38,863 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:38,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:39,035 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:39,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:39,191 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:39,194 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:39,354 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:39,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:39,513 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:39,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:39,681 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:39,683 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:39,826 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:39,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:39,982 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:39,985 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:40,150 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:40,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:40,337 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:40,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:40,526 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:40,529 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:40,715 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:40,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:40,909 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:40,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:41,120 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:41,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:41,334 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:41,337 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:41,559 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:41,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:41,782 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:41,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:42,001 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:42,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:42,236 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:42,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:42,464 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:42,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:42,695 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:42,698 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:42,928 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:42,943 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:43,172 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:43,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:43,423 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:43,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:43,688 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:43,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:43,950 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:43,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:44,198 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:44,201 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:44,464 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:44,466 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:44,731 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:44,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:44,996 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:44,998 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:45,278 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:45,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:45,561 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:45,563 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:45,858 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:45,861 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:46,157 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:46,159 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:46,461 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:46,464 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:46,767 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:46,770 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:47,069 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:47,072 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:47,384 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:47,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:47,679 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:47,682 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:48,007 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:48,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:48,350 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:48,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 07:22:48,722 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size [2021-05-01 07:22:48,725 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-05-01 07:22:49,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:22:49,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:22:49,090 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:22:49,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417120532] [2021-05-01 07:22:49,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [417120532] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:22:49,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:22:49,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2021-05-01 07:22:49,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97694372] [2021-05-01 07:22:49,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-05-01 07:22:49,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:22:49,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-05-01 07:22:49,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=3367, Unknown=1, NotChecked=0, Total=3540 [2021-05-01 07:22:49,092 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 56 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:22:50,313 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-05-01 07:22:51,870 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-01 07:22:52,404 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-01 07:22:57,341 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-01 07:23:06,652 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-01 07:23:07,172 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-01 07:23:08,162 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-01 07:23:14,734 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-05-01 07:23:15,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:23:15,904 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2021-05-01 07:23:15,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-05-01 07:23:15,912 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 56 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2021-05-01 07:23:15,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:23:15,912 INFO L225 Difference]: With dead ends: 69 [2021-05-01 07:23:15,912 INFO L226 Difference]: Without dead ends: 64 [2021-05-01 07:23:15,913 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 25537.3ms TimeCoverageRelationStatistics Valid=452, Invalid=12657, Unknown=1, NotChecked=0, Total=13110 [2021-05-01 07:23:15,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-05-01 07:23:15,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-05-01 07:23:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 59 states have internal predecessors, (60), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:23:15,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2021-05-01 07:23:15,973 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2021-05-01 07:23:15,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:23:15,973 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2021-05-01 07:23:15,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 56 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:23:15,973 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2021-05-01 07:23:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-05-01 07:23:15,973 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:23:15,974 INFO L519 BasicCegarLoop]: trace histogram [51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:23:15,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-05-01 07:23:15,974 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:23:15,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:23:15,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1641560591, now seen corresponding path program 51 times [2021-05-01 07:23:15,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:23:15,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096764777] [2021-05-01 07:23:15,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:23:15,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:15,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:15,994 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1435) InVars {main_~mid~0=v_main_~mid~0_1435} OutVars{main_~mid~0=v_main_~mid~0_1435} AuxVars[] AssignedVars[] [2021-05-01 07:23:15,999 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:23:16,009 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,021 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,032 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,043 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,052 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,054 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,064 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,076 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:23:16,078 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:23:16,086 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:23:16,098 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,112 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,127 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,143 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,158 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,160 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:23:16,300 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-01 07:23:16,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:16,308 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:23:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:16,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:16,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:23:16,347 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:23:16,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:23:16,404 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-05-01 07:23:16,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:23:16,465 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-05-01 07:23:16,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:23:16,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:16,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:23:16,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:16,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:23:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:23:16,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:16,708 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 07:23:16,711 INFO L142 QuantifierPusher]: treesize reduction 13, result has 81.7 percent of original size [2021-05-01 07:23:16,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:16,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 07:23:16,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 07:23:16,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:16,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:16,817 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:16,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:16,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:16,952 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:16,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:16,956 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:16,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:16,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:17,097 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:17,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:17,100 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:17,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:17,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:17,284 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:17,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:17,287 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:17,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:17,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:17,466 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:17,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:17,470 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:17,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:17,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:17,672 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:17,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:17,676 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:17,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:17,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:17,883 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:17,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:17,887 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:17,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:17,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:18,108 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:18,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:18,111 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:18,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:18,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:18,362 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:18,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:18,366 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:18,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:18,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:18,659 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:18,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:18,663 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:18,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:18,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:18,956 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:18,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:18,960 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:18,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:18,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:19,217 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:19,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,221 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:19,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:19,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:19,518 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:19,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,521 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:19,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:19,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:19,861 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:19,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:19,864 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:19,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:19,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:20,227 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:20,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,236 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:20,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:20,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:20,594 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:20,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,598 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:20,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:20,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:20,970 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:20,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:20,973 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:20,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:20,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:21,376 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:21,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:21,379 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:21,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:21,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:21,810 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:21,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:21,813 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:21,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:21,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:22,254 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:22,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:22,258 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:22,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:22,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:22,731 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:22,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:22,734 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:22,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:22,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:23,200 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:23,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:23,204 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:23,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:23,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:23,695 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:23,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:23,699 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:23,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:23,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:24,193 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:24,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:24,196 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:24,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:24,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:24,697 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:24,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:24,701 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:24,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:24,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:25,215 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:25,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:25,218 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:25,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:25,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:25,825 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:25,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:25,829 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:25,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:25,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:26,462 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:26,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:26,466 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:26,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:26,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:27,052 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:27,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,056 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:27,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:27,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:27,709 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:27,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:27,712 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:27,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:27,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:28,385 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:28,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:28,388 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:28,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:28,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:29,068 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:29,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,071 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:29,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:29,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:29,741 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:29,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:29,744 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:29,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:29,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:30,459 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:30,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:30,463 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:30,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:30,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:31,115 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:31,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:31,118 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:31,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:31,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:31,792 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:31,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:31,795 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:31,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:31,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:32,402 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:32,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:32,405 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:32,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:32,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:33,086 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:33,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:33,089 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:33,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:33,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:33,869 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:33,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:33,872 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:33,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:34,685 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:34,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:34,689 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:34,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:34,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:35,484 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:35,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:35,487 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:35,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:35,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:36,219 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:36,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:36,223 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:36,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:36,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:37,094 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:37,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:37,098 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:37,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:37,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:37,818 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:37,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:37,821 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:37,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:37,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:38,609 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:38,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:38,612 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:38,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:38,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:39,442 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:39,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:39,445 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:39,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:39,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:40,372 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:40,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:40,376 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:40,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:40,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:41,272 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:41,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:41,276 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:41,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:41,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:42,236 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:42,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:42,239 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:42,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:42,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:43,079 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:43,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:43,082 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:43,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:43,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:43,944 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.7 percent of original size [2021-05-01 07:23:43,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:23:43,947 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-05-01 07:23:43,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:23:43,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-05-01 07:23:44,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:23:44,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:23:44,758 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:23:44,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096764777] [2021-05-01 07:23:44,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2096764777] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:23:44,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:23:44,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2021-05-01 07:23:44,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935424396] [2021-05-01 07:23:44,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-05-01 07:23:44,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:23:44,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-05-01 07:23:44,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=3485, Unknown=0, NotChecked=0, Total=3660 [2021-05-01 07:23:44,759 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 57 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:23:46,374 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-01 07:23:48,049 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:48,866 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:50,690 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:53,021 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:53,930 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:54,659 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:55,454 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:56,205 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:57,108 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:23:58,038 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:00,448 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:02,176 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:03,098 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:03,915 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:04,774 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:05,686 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:06,552 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:07,399 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:08,278 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:09,153 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:10,018 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:10,952 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:11,831 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:12,671 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:13,499 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:14,528 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:15,474 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:16,485 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:17,430 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:18,383 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:19,355 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:20,287 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:21,904 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:23,505 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:24,219 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:25,050 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:26,594 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:24:29,707 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-05-01 07:24:30,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 07:24:30,702 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2021-05-01 07:24:30,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-01 07:24:30,707 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 57 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2021-05-01 07:24:30,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 07:24:30,708 INFO L225 Difference]: With dead ends: 70 [2021-05-01 07:24:30,708 INFO L226 Difference]: Without dead ends: 65 [2021-05-01 07:24:30,709 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1916 ImplicationChecksByTransitivity, 55035.1ms TimeCoverageRelationStatistics Valid=460, Invalid=13112, Unknown=0, NotChecked=0, Total=13572 [2021-05-01 07:24:30,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-05-01 07:24:30,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-05-01 07:24:30,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:24:30,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2021-05-01 07:24:30,764 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2021-05-01 07:24:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 07:24:30,764 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2021-05-01 07:24:30,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 57 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:24:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2021-05-01 07:24:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-05-01 07:24:30,765 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 07:24:30,765 INFO L519 BasicCegarLoop]: trace histogram [52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 07:24:30,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-05-01 07:24:30,765 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 07:24:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 07:24:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash -616734153, now seen corresponding path program 52 times [2021-05-01 07:24:30,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 07:24:30,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978219482] [2021-05-01 07:24:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 07:24:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:24:30,778 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 v_main_~mid~0_1489) InVars {main_~mid~0=v_main_~mid~0_1489} OutVars{main_~mid~0=v_main_~mid~0_1489} AuxVars[] AssignedVars[] [2021-05-01 07:24:30,780 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size [2021-05-01 07:24:30,782 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,790 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,800 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:24:30,802 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-05-01 07:24:30,810 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,818 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,825 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,832 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 07:24:30,839 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,851 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,857 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,864 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,871 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,877 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,884 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,886 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-05-01 07:24:30,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-05-01 07:24:30,983 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 07:24:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:24:30,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:30,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:30,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 07:24:31,010 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.4 percent of original size [2021-05-01 07:24:31,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-05-01 07:24:31,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-05-01 07:24:31,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 07:24:31,145 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-05-01 07:24:31,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-05-01 07:24:31,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:31,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:31,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:31,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 07:24:31,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:31,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:31,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 07:24:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 07:24:31,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:31,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:31,317 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 07:24:31,319 INFO L142 QuantifierPusher]: treesize reduction 16, result has 77.5 percent of original size [2021-05-01 07:24:31,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:31,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:31,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-05-01 07:24:31,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-05-01 07:24:31,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:31,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:31,413 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:31,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:31,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:31,536 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:31,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:31,539 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:31,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:31,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:31,664 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:31,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:31,667 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:31,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:31,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:31,814 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:31,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:31,816 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:31,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:31,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:31,984 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:31,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:31,987 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:31,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:31,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:32,161 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:32,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,164 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:32,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:32,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:32,345 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:32,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,348 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:32,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:32,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:32,535 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:32,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,538 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:32,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:32,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:32,764 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:32,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,767 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:32,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:32,986 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:32,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:32,989 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:32,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:32,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:33,228 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:33,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,230 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:33,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:33,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:33,491 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:33,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,494 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:33,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:33,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:33,790 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:33,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:33,793 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:33,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:33,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:34,076 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:34,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:34,079 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:34,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:34,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:34,379 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:34,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:34,382 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:34,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:34,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:34,685 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:34,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:34,687 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:34,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:34,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:35,013 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:35,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:35,016 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:35,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:35,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:35,338 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:35,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:35,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:35,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:35,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:35,719 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:35,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:35,721 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:35,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:35,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:36,106 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:36,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:36,109 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:36,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:36,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:36,527 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:36,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:36,529 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:36,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:36,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:36,873 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:36,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:36,876 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:36,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:36,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:37,303 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:37,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:37,307 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:37,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:37,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:37,724 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:37,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:37,727 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:37,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:37,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:38,165 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:38,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:38,168 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:38,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:38,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:38,610 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:38,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:38,613 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:38,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:38,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:39,081 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:39,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:39,083 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:39,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:39,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:39,523 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:39,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:39,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:39,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:39,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:40,061 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:40,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:40,064 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:40,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:40,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:40,609 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:40,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:40,612 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:40,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:40,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:41,130 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:41,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:41,133 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:41,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:41,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:41,678 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:41,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:41,681 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:41,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:41,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:42,247 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:42,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:42,250 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:42,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:42,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:42,878 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:42,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:42,881 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:42,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:42,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:43,488 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:43,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:43,490 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:43,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:43,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:44,110 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:44,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:44,113 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:44,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:44,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:44,736 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:44,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:44,739 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:44,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:44,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:45,371 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:45,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:45,374 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:45,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:45,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:46,009 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:46,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:46,012 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:46,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:46,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:46,692 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:46,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:46,695 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:46,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:46,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:47,392 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:47,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:47,395 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:47,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:47,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:48,073 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:48,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:48,076 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:48,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:48,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:48,857 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:48,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:48,860 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:48,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:48,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:49,577 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:49,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:49,580 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:49,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:49,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:50,364 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:50,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:50,367 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:50,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:50,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:51,112 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:51,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:51,115 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:51,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:51,902 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:51,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:51,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:51,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:51,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:52,752 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:52,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:52,761 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:52,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:52,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:53,584 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:53,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:53,586 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:53,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:53,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:54,383 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:54,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:54,386 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:54,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:54,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:55,323 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:55,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:55,326 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:55,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:55,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:56,231 INFO L142 QuantifierPusher]: treesize reduction 5, result has 93.8 percent of original size [2021-05-01 07:24:56,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 07:24:56,234 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-05-01 07:24:56,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 07:24:56,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-05-01 07:24:57,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 07:24:57,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 07:24:57,118 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 07:24:57,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978219482] [2021-05-01 07:24:57,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [978219482] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 07:24:57,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 07:24:57,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2021-05-01 07:24:57,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556849184] [2021-05-01 07:24:57,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-05-01 07:24:57,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 07:24:57,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-05-01 07:24:57,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=3604, Unknown=0, NotChecked=0, Total=3782 [2021-05-01 07:24:57,119 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand has 60 states, 59 states have (on average 1.0169491525423728) internal successors, (60), 58 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 07:24:58,523 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-05-01 07:24:59,364 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-01 07:25:00,269 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-01 07:25:01,339 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:25:02,302 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:25:03,261 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-01 07:25:04,363 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 60