/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:46:50,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:46:50,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:46:50,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:46:50,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:46:50,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:46:50,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:46:50,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:46:50,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:46:50,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:46:50,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:46:50,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:46:50,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:46:50,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:46:50,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:46:50,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:46:50,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:46:50,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:46:50,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:46:50,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:46:50,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:46:50,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:46:50,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:46:50,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:46:50,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:46:50,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:46:50,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:46:50,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:46:50,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:46:50,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:46:50,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:46:50,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:46:50,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:46:50,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:46:50,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:46:50,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:46:50,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:46:50,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:46:50,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:46:50,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:46:50,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:46:50,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:46:50,098 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:46:50,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:46:50,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:46:50,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:46:50,100 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:46:50,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:46:50,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:46:50,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:46:50,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:46:50,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:46:50,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:46:50,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:46:50,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:46:50,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:46:50,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:46:50,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:46:50,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:46:50,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:46:50,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:46:50,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:46:50,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:46:50,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:46:50,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:46:50,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:46:50,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:46:50,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:46:50,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:46:50,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:46:50,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:46:50,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:46:50,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:46:50,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:46:50,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:46:50,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:46:50,427 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:46:50,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2020-10-12 18:46:50,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/702d7bf5a/ecfbf4d2230e483e9bca6ed53a6ec476/FLAG3bd3ffe08 [2020-10-12 18:46:51,010 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:46:51,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2020-10-12 18:46:51,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/702d7bf5a/ecfbf4d2230e483e9bca6ed53a6ec476/FLAG3bd3ffe08 [2020-10-12 18:46:51,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/702d7bf5a/ecfbf4d2230e483e9bca6ed53a6ec476 [2020-10-12 18:46:51,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:46:51,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:46:51,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:46:51,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:46:51,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:46:51,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b1378c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51, skipping insertion in model container [2020-10-12 18:46:51,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:46:51,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:46:51,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:46:51,832 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:46:51,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:46:51,921 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:46:51,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51 WrapperNode [2020-10-12 18:46:51,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:46:51,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:46:51,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:46:51,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:46:51,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (1/1) ... [2020-10-12 18:46:51,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:46:51,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:46:51,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:46:51,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:46:51,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-12 18:46:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:46:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:46:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:46:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:46:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:46:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:46:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:46:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:46:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-12 18:46:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-12 18:46:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:46:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:46:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:46:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:46:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:46:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:46:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:46:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:46:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:46:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:46:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:46:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:46:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:46:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:46:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:46:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:46:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:46:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 18:46:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-12 18:46:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:46:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:46:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:46:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:46:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:46:52,898 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:46:52,898 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:46:52,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:46:52 BoogieIcfgContainer [2020-10-12 18:46:52,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:46:52,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:46:52,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:46:52,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:46:52,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:46:51" (1/3) ... [2020-10-12 18:46:52,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25eb8f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:46:52, skipping insertion in model container [2020-10-12 18:46:52,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:46:51" (2/3) ... [2020-10-12 18:46:52,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25eb8f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:46:52, skipping insertion in model container [2020-10-12 18:46:52,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:46:52" (3/3) ... [2020-10-12 18:46:52,923 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2020-10-12 18:46:52,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:46:52,942 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:46:52,955 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:46:52,979 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:46:52,980 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:46:52,980 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:46:52,980 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:46:52,981 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:46:52,981 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:46:52,981 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:46:52,981 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:46:53,005 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-10-12 18:46:53,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:46:53,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:46:53,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:46:53,020 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:46:53,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:46:53,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2011977031, now seen corresponding path program 1 times [2020-10-12 18:46:53,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:46:53,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094242306] [2020-10-12 18:46:53,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:46:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:53,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:53,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:53,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:46:53,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-12 18:46:53,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:53,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:46:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:53,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:46:54,089 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:46:54,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:54,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:46:54,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:54,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:54,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:46:54,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:54,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:54,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:46:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:54,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:54,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:46:54,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:54,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:46:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:54,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:46:54,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:54,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:46:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:54,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:46:54,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:54,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:54,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:46:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:54,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:46:54,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:54,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:46:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:54,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:54,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:54,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:54,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:46:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:54,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:54,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:54,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:54,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:46:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:54,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:54,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:54,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:54,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:46:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:54,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:54,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:54,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:46:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:54,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:54,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:54,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:46:54,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:54,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:54,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:54,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:54,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:46:54,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:54,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:54,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:46:54,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094242306] [2020-10-12 18:46:54,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:46:54,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:46:54,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942654352] [2020-10-12 18:46:54,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:46:54,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:46:54,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:46:54,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:46:54,509 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 10 states. [2020-10-12 18:46:56,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:46:56,135 INFO L93 Difference]: Finished difference Result 277 states and 413 transitions. [2020-10-12 18:46:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:46:56,137 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-12 18:46:56,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:46:56,150 INFO L225 Difference]: With dead ends: 277 [2020-10-12 18:46:56,151 INFO L226 Difference]: Without dead ends: 166 [2020-10-12 18:46:56,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:46:56,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-12 18:46:56,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-12 18:46:56,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-12 18:46:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 256 transitions. [2020-10-12 18:46:56,251 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 256 transitions. Word has length 81 [2020-10-12 18:46:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:46:56,251 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 256 transitions. [2020-10-12 18:46:56,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:46:56,251 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 256 transitions. [2020-10-12 18:46:56,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:46:56,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:46:56,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:46:56,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:46:56,264 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:46:56,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:46:56,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1280009605, now seen corresponding path program 1 times [2020-10-12 18:46:56,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:46:56,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603420195] [2020-10-12 18:46:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:46:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:56,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-12 18:46:57,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 971 [2020-10-12 18:46:57,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:46:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:46:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:46:57,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:46:57,491 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:46:57,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:57,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:46:57,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:57,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-12 18:46:57,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:46:57,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:46:57,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:46:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:57,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:46:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:57,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:57,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:57,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:46:57,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:46:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:57,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:46:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:57,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:46:57,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:57,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:57,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:46:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:57,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:57,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:57,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:57,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:46:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:57,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:57,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:57,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:57,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:46:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:57,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:57,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:57,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:46:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:57,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:57,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:46:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:57,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:57,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:57,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:57,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:46:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:57,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:57,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:57,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:57,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:46:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:57,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:57,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:57,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:46:57,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:57,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:46:57,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:46:57,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:57,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:57,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:46:57,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603420195] [2020-10-12 18:46:57,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:46:57,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:46:57,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444148482] [2020-10-12 18:46:57,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:46:57,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:46:57,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:46:57,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:46:57,988 INFO L87 Difference]: Start difference. First operand 166 states and 256 transitions. Second operand 16 states. [2020-10-12 18:46:58,294 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:46:58,582 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:46:58,894 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:46:59,080 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:47:01,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:01,531 INFO L93 Difference]: Finished difference Result 283 states and 423 transitions. [2020-10-12 18:47:01,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:47:01,532 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2020-10-12 18:47:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:01,537 INFO L225 Difference]: With dead ends: 283 [2020-10-12 18:47:01,537 INFO L226 Difference]: Without dead ends: 179 [2020-10-12 18:47:01,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2020-10-12 18:47:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-12 18:47:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 166. [2020-10-12 18:47:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-12 18:47:01,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 206 transitions. [2020-10-12 18:47:01,563 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 206 transitions. Word has length 81 [2020-10-12 18:47:01,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:47:01,563 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 206 transitions. [2020-10-12 18:47:01,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:47:01,564 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 206 transitions. [2020-10-12 18:47:01,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-12 18:47:01,565 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:47:01,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:47:01,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:47:01,566 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:47:01,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:47:01,566 INFO L82 PathProgramCache]: Analyzing trace with hash 597453265, now seen corresponding path program 1 times [2020-10-12 18:47:01,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:47:01,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773853601] [2020-10-12 18:47:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:47:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:01,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:02,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:04,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:06,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:06,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-12 18:47:06,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:47:06,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 18:47:06,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:06,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:47:06,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:47:06,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-12 18:47:06,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:06,851 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:47:06,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:47:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:06,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:06,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:06,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:47:06,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:06,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:47:06,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:06,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:47:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:06,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:06,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:06,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:47:06,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:06,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-12 18:47:06,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:47:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:47:06,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:47:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:47:07,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:07,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:07,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:07,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:47:07,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:47:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:07,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:47:07,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:07,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:07,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:47:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:07,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:47:07,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:07,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:47:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:07,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:47:07,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:47:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:07,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:47:07,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:07,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:07,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:07,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:47:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:07,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:47:07,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:07,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:07,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:47:07,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:47:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:07,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:47:07,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:07,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:07,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:07,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:47:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:07,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:47:07,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:07,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:07,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:07,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:47:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:07,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:07,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:07,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:47:07,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:07,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:47:07,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:47:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:47:07,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:47:07,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773853601] [2020-10-12 18:47:07,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:47:07,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 18:47:07,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632350225] [2020-10-12 18:47:07,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:47:07,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:47:07,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:47:07,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:47:07,772 INFO L87 Difference]: Start difference. First operand 166 states and 206 transitions. Second operand 25 states. [2020-10-12 18:47:08,052 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:47:08,267 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:47:08,495 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:47:08,666 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:47:08,839 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:47:09,015 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:47:09,214 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:47:10,492 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:47:12,919 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:47:13,074 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 18:47:14,158 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:47:18,244 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-12 18:47:18,478 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:47:18,696 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:47:18,904 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:47:19,106 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:47:19,288 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:47:19,476 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:47:23,839 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:47:23,994 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:47:24,156 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:47:24,644 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:47:27,257 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 18:47:28,322 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:47:28,850 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:47:28,997 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:47:29,781 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:47:30,590 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:47:30,746 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:47:30,894 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:47:32,379 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:47:34,148 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:47:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:44,665 INFO L93 Difference]: Finished difference Result 2178 states and 3490 transitions. [2020-10-12 18:47:44,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2020-10-12 18:47:44,666 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 130 [2020-10-12 18:47:44,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:44,693 INFO L225 Difference]: With dead ends: 2178 [2020-10-12 18:47:44,693 INFO L226 Difference]: Without dead ends: 2080 [2020-10-12 18:47:44,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19344 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=8422, Invalid=38450, Unknown=0, NotChecked=0, Total=46872 [2020-10-12 18:47:44,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2020-10-12 18:47:44,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1584. [2020-10-12 18:47:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1584 states. [2020-10-12 18:47:44,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2240 transitions. [2020-10-12 18:47:44,928 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2240 transitions. Word has length 130 [2020-10-12 18:47:44,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:47:44,929 INFO L479 AbstractCegarLoop]: Abstraction has 1584 states and 2240 transitions. [2020-10-12 18:47:44,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:47:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2240 transitions. [2020-10-12 18:47:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:47:44,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:47:44,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:47:44,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:47:44,934 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:47:44,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:47:44,934 INFO L82 PathProgramCache]: Analyzing trace with hash 991213185, now seen corresponding path program 1 times [2020-10-12 18:47:44,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:47:44,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17672200] [2020-10-12 18:47:44,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:47:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:45,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:45,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:45,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:45,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:45,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:49,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:49,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:47:49,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:47:49,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 18:47:49,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 18:47:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-12 18:47:49,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,192 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:47:50,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:47:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:47:50,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:47:50,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:50,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:47:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:47:50,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:47:50,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:50,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:50,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-12 18:47:50,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:47:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:47:50,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:47:50,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:47:50,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:47:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:50,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:47:50,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:47:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:47:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:50,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:47:50,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:50,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:47:50,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:47:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:50,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:47:50,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:47:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:47:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:50,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:47:50,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:47:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:47:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:50,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:47:50,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:47:50,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:47:50,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:47:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:50,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:47:50,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:47:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:47:50,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:47:50,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:47:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:47:50,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:47:50,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:47:50,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:47:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:47:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:47:50,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:47:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:50,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:50,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:47:50,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:47:50,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:47:50,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:47:50,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:47:50,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:47:50,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:47:50,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:47:50,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:47:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:47:50,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17672200] [2020-10-12 18:47:50,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:47:50,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:47:50,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709237071] [2020-10-12 18:47:50,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:47:50,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:47:50,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:47:50,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:47:50,610 INFO L87 Difference]: Start difference. First operand 1584 states and 2240 transitions. Second operand 14 states. [2020-10-12 18:47:50,863 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:47:52,542 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:47:54,514 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:47:54,725 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:47:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:47:56,909 INFO L93 Difference]: Finished difference Result 7260 states and 10456 transitions. [2020-10-12 18:47:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:47:56,910 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 132 [2020-10-12 18:47:56,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:47:56,942 INFO L225 Difference]: With dead ends: 7260 [2020-10-12 18:47:56,943 INFO L226 Difference]: Without dead ends: 5744 [2020-10-12 18:47:56,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=490, Invalid=1766, Unknown=0, NotChecked=0, Total=2256 [2020-10-12 18:47:56,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2020-10-12 18:47:57,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 5738. [2020-10-12 18:47:57,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5738 states. [2020-10-12 18:47:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 8125 transitions. [2020-10-12 18:47:57,374 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 8125 transitions. Word has length 132 [2020-10-12 18:47:57,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:47:57,375 INFO L479 AbstractCegarLoop]: Abstraction has 5738 states and 8125 transitions. [2020-10-12 18:47:57,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:47:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 8125 transitions. [2020-10-12 18:47:57,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:47:57,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:47:57,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:47:57,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:47:57,378 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:47:57,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:47:57,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1934717421, now seen corresponding path program 1 times [2020-10-12 18:47:57,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:47:57,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718908173] [2020-10-12 18:47:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:47:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:47:57,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:57,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:57,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:47:59,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:02,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:02,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:48:02,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:48:02,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:48:02,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 18:48:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:48:02,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 18:48:02,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:02,678 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:48:02,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:02,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:02,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:02,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:02,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:02,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:02,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:02,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:02,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:02,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:48:02,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:02,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 18:48:02,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:48:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:48:02,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:02,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:02,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:02,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:02,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:02,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:02,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:02,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:02,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:02,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:02,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:02,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:02,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:48:02,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:03,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:48:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:03,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:03,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:03,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:03,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:03,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:48:03,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:03,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:03,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:48:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:03,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:03,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:03,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:03,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:03,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:48:03,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:03,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:48:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:03,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:03,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:03,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:03,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:03,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:03,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:48:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:03,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:03,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:03,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:03,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:48:03,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:03,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:48:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:03,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:03,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:03,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:03,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:03,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:48:03,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:03,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:03,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:48:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:03,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:03,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:03,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:03,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:03,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:48:03,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:03,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:03,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:03,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-12 18:48:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:03,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:03,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:03,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:48:03,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:03,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:03,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:03,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:03,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:48:03,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:48:03,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:48:03,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718908173] [2020-10-12 18:48:03,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:03,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 18:48:03,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143880944] [2020-10-12 18:48:03,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:48:03,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:03,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:48:03,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:48:03,576 INFO L87 Difference]: Start difference. First operand 5738 states and 8125 transitions. Second operand 25 states. [2020-10-12 18:48:03,852 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:48:04,034 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:48:04,246 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:48:04,451 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:48:04,658 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:48:04,871 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:48:05,089 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:48:05,752 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:05,945 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:48:06,625 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:06,873 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:48:07,954 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:08,185 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-12 18:48:08,448 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:48:08,831 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:09,762 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:10,003 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:48:10,306 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:10,440 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:48:10,839 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:48:11,487 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 18:48:12,214 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:48:12,734 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:12,860 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:48:12,984 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:13,548 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:48:13,930 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:48:14,251 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:48:14,402 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:48:14,552 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:48:14,963 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:15,218 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:15,388 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:15,566 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:15,742 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:48:16,271 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-12 18:48:16,817 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:48:18,351 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:18,488 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:48:18,649 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:48:20,500 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:20,656 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:20,796 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:20,932 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:48:22,529 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:22,688 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:22,830 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:22,966 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:48:24,186 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:24,344 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:24,485 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:25,474 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:25,627 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:26,517 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:27,700 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:48:28,342 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:48:28,667 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:48:28,870 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:48:29,013 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:48:29,183 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:48:31,356 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:48:32,101 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:48:32,542 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:48:32,860 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:48:33,323 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:48:33,619 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:48:34,130 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:48:34,418 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:48:34,936 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:48:35,533 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:48:35,827 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:48:40,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:40,488 INFO L93 Difference]: Finished difference Result 17230 states and 27434 transitions. [2020-10-12 18:48:40,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2020-10-12 18:48:40,489 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 132 [2020-10-12 18:48:40,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:40,587 INFO L225 Difference]: With dead ends: 17230 [2020-10-12 18:48:40,587 INFO L226 Difference]: Without dead ends: 11560 [2020-10-12 18:48:40,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18078 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=7189, Invalid=35453, Unknown=0, NotChecked=0, Total=42642 [2020-10-12 18:48:40,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11560 states. [2020-10-12 18:48:41,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11560 to 7946. [2020-10-12 18:48:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7946 states. [2020-10-12 18:48:41,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7946 states to 7946 states and 11373 transitions. [2020-10-12 18:48:41,540 INFO L78 Accepts]: Start accepts. Automaton has 7946 states and 11373 transitions. Word has length 132 [2020-10-12 18:48:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:41,543 INFO L479 AbstractCegarLoop]: Abstraction has 7946 states and 11373 transitions. [2020-10-12 18:48:41,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:48:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7946 states and 11373 transitions. [2020-10-12 18:48:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:48:41,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:41,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:48:41,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:48:41,561 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:41,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1565256751, now seen corresponding path program 1 times [2020-10-12 18:48:41,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:41,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849368784] [2020-10-12 18:48:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:41,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:41,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:41,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:41,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:43,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:48:46,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:48:46,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:48:46,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:48:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:48:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 18:48:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,889 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:48:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:46,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:48:46,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:48:46,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:48:46,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 18:48:46,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:48:46,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:46,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:48:46,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:46,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:48:46,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:46,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:46,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:47,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:47,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:47,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:47,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:47,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:47,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:47,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:47,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:47,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:48:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:47,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:47,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:47,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:47,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:47,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:47,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:47,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:48:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:47,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:47,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:47,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:47,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:47,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:47,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:47,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:48:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:47,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:47,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:47,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:47,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:48:47,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:48:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:47,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:47,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:47,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:47,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:47,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:47,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:47,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:47,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:47,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:48:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:47,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:47,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:47,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:47,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:47,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:47,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:47,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:47,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:48:47,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-12 18:48:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:47,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:47,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:48:47,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:47,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:48:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:48:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:48:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:47,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:47,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:47,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:47,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:48:47,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:48:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:48:47,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849368784] [2020-10-12 18:48:47,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:47,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:48:47,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24029541] [2020-10-12 18:48:47,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:48:47,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:47,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:48:47,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:48:47,333 INFO L87 Difference]: Start difference. First operand 7946 states and 11373 transitions. Second operand 17 states. [2020-10-12 18:48:47,775 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-12 18:48:47,981 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:48:48,714 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-12 18:48:48,897 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2020-10-12 18:48:49,193 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-12 18:48:49,477 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-12 18:48:49,752 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-12 18:48:50,029 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-12 18:48:50,315 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-12 18:48:50,709 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-12 18:48:50,940 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 108 [2020-10-12 18:48:51,420 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2020-10-12 18:48:51,673 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-12 18:48:51,917 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-12 18:48:52,171 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-12 18:48:52,417 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-12 18:48:52,669 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-12 18:48:52,962 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2020-10-12 18:48:53,168 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-12 18:48:53,373 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 108 [2020-10-12 18:48:53,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:53,798 INFO L93 Difference]: Finished difference Result 16745 states and 23780 transitions. [2020-10-12 18:48:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 18:48:53,799 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-12 18:48:53,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:53,838 INFO L225 Difference]: With dead ends: 16745 [2020-10-12 18:48:53,838 INFO L226 Difference]: Without dead ends: 8867 [2020-10-12 18:48:53,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=440, Invalid=1200, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 18:48:53,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8867 states. [2020-10-12 18:48:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8867 to 8383. [2020-10-12 18:48:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8383 states. [2020-10-12 18:48:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8383 states to 8383 states and 11961 transitions. [2020-10-12 18:48:54,562 INFO L78 Accepts]: Start accepts. Automaton has 8383 states and 11961 transitions. Word has length 132 [2020-10-12 18:48:54,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:54,563 INFO L479 AbstractCegarLoop]: Abstraction has 8383 states and 11961 transitions. [2020-10-12 18:48:54,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:48:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 8383 states and 11961 transitions. [2020-10-12 18:48:54,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:48:54,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:54,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:48:54,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:48:54,566 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:54,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:54,567 INFO L82 PathProgramCache]: Analyzing trace with hash -2124108667, now seen corresponding path program 1 times [2020-10-12 18:48:54,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:54,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96218008] [2020-10-12 18:48:54,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:54,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:54,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:54,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:55,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:55,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:59,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:59,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:48:59,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:48:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:48:59,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 18:48:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:48:59,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-12 18:48:59,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:59,816 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:48:59,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:59,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:59,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:59,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:59,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:59,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:59,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:59,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:59,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:59,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:59,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:59,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:48:59,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:59,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 18:48:59,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:59,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:48:59,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:59,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:48:59,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:59,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:59,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:59,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:59,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:59,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:48:59,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:49:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:00,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:00,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:00,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:00,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:00,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:49:00,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:00,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:00,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:49:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:00,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:00,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:00,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:00,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:49:00,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:00,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:49:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:00,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:00,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:00,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:00,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:49:00,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:49:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:00,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:00,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:00,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:00,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:00,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:49:00,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:00,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:00,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:00,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:49:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:00,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:00,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:00,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:49:00,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:00,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:49:00,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:49:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:49:00,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:49:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:00,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:00,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:00,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:00,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:00,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:49:00,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:00,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:00,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:49:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:00,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:00,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:00,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:00,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:00,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:49:00,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:00,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:49:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:00,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:00,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:00,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:49:00,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:00,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:00,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:49:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:49:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:00,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:49:00,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96218008] [2020-10-12 18:49:00,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:49:00,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-12 18:49:00,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387950202] [2020-10-12 18:49:00,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-12 18:49:00,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:49:00,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-12 18:49:00,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:49:00,462 INFO L87 Difference]: Start difference. First operand 8383 states and 11961 transitions. Second operand 25 states. [2020-10-12 18:49:00,951 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-12 18:49:01,162 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:49:01,368 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:49:01,579 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:49:01,797 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:49:02,029 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:49:02,258 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-12 18:49:02,644 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-10-12 18:49:03,088 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-12 18:49:03,267 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:49:03,994 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-12 18:49:04,189 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:49:04,464 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 18:49:05,284 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-12 18:49:05,492 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:49:06,765 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-12 18:49:06,987 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:49:08,008 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-12 18:49:08,846 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-12 18:49:09,839 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:49:10,058 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:49:10,259 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:49:10,452 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:49:12,968 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:16,822 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:49:16,966 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:49:18,102 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 18:49:20,476 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:49:20,711 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:49:21,462 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:21,604 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:21,808 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:49:22,284 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:49:22,425 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:49:22,634 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:23,162 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:49:23,304 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:49:23,511 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:23,999 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:49:24,144 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:49:24,357 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:24,657 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:49:25,135 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:49:25,623 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-12 18:49:25,998 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:49:26,190 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:49:26,334 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-12 18:49:26,483 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:26,648 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:49:26,869 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-12 18:49:27,010 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:49:27,212 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-12 18:49:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:49:28,436 INFO L93 Difference]: Finished difference Result 17444 states and 25769 transitions. [2020-10-12 18:49:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2020-10-12 18:49:28,437 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 132 [2020-10-12 18:49:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:49:28,488 INFO L225 Difference]: With dead ends: 17444 [2020-10-12 18:49:28,488 INFO L226 Difference]: Without dead ends: 11779 [2020-10-12 18:49:28,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11880 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=5208, Invalid=26298, Unknown=0, NotChecked=0, Total=31506 [2020-10-12 18:49:28,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11779 states. [2020-10-12 18:49:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11779 to 10309. [2020-10-12 18:49:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10309 states. [2020-10-12 18:49:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10309 states to 10309 states and 14743 transitions. [2020-10-12 18:49:29,205 INFO L78 Accepts]: Start accepts. Automaton has 10309 states and 14743 transitions. Word has length 132 [2020-10-12 18:49:29,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:49:29,206 INFO L479 AbstractCegarLoop]: Abstraction has 10309 states and 14743 transitions. [2020-10-12 18:49:29,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-12 18:49:29,206 INFO L276 IsEmpty]: Start isEmpty. Operand 10309 states and 14743 transitions. [2020-10-12 18:49:29,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:49:29,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:49:29,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:49:29,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:49:29,209 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:49:29,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:49:29,210 INFO L82 PathProgramCache]: Analyzing trace with hash -208200239, now seen corresponding path program 1 times [2020-10-12 18:49:29,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:49:29,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111880643] [2020-10-12 18:49:29,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:49:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:29,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:29,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:29,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:29,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:29,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:49:34,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:49:34,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:49:34,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:49:34,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:49:34,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-12 18:49:34,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:34,445 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:49:34,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:49:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:49:34,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:49:34,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:49:34,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:34,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:49:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:49:34,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:49:34,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:49:34,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:34,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:49:34,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:34,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:49:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:49:34,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:34,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:34,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:49:34,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:34,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:49:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:34,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:49:34,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:34,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:34,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:49:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:34,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:49:34,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:34,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:34,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:49:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:34,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:49:34,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:34,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:34,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:49:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:49:34,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:49:34,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:49:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:49:34,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:34,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:49:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:34,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:34,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:49:34,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:34,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:49:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:34,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:49:34,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:49:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:34,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:34,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:49:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:34,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:49:34,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:34,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:49:34,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:34,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:34,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:49:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:34,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:34,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:34,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:49:34,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:34,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:34,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:34,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:34,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:49:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:34,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:49:34,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111880643] [2020-10-12 18:49:34,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:49:34,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:49:34,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811426324] [2020-10-12 18:49:34,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:49:34,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:49:34,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:49:34,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:49:34,934 INFO L87 Difference]: Start difference. First operand 10309 states and 14743 transitions. Second operand 17 states. [2020-10-12 18:49:35,412 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-12 18:49:35,637 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:49:36,413 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2020-10-12 18:49:36,618 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-10-12 18:49:36,932 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:37,336 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:37,637 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-10-12 18:49:37,886 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 18:49:38,099 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-10-12 18:49:38,384 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:38,701 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:38,950 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:39,393 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-12 18:49:39,668 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:39,945 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:40,239 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-12 18:49:40,521 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:40,828 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:41,167 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:41,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:49:41,800 INFO L93 Difference]: Finished difference Result 18817 states and 26785 transitions. [2020-10-12 18:49:41,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:49:41,801 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-12 18:49:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:49:41,849 INFO L225 Difference]: With dead ends: 18817 [2020-10-12 18:49:41,849 INFO L226 Difference]: Without dead ends: 14042 [2020-10-12 18:49:41,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:49:41,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14042 states. [2020-10-12 18:49:43,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14042 to 11512. [2020-10-12 18:49:43,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11512 states. [2020-10-12 18:49:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 16429 transitions. [2020-10-12 18:49:43,044 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 16429 transitions. Word has length 132 [2020-10-12 18:49:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:49:43,044 INFO L479 AbstractCegarLoop]: Abstraction has 11512 states and 16429 transitions. [2020-10-12 18:49:43,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:49:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 16429 transitions. [2020-10-12 18:49:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:49:43,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:49:43,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:49:43,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:49:43,048 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:49:43,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:49:43,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1550285647, now seen corresponding path program 1 times [2020-10-12 18:49:43,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:49:43,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379367797] [2020-10-12 18:49:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:49:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:43,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:43,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:43,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:43,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:44,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:44,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:49:48,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:49:48,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:49:48,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:49:48,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:49:48,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-12 18:49:48,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,269 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:49:48,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:49:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:49:48,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:49:48,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:48,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:49:48,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:49:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:49:48,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:49:48,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:49:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:49:48,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:49:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:49:48,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:49:48,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:49:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:49:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:48,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:49:48,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:48,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:48,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:48,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:49:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:48,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:49:48,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:48,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:48,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:49:48,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:49:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:49:48,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:49:48,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:49:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:48,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:49:48,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:49:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:48,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:49:48,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:49:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:48,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:49:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:48,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:49:48,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:49:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:48,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:49:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:48,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:48,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:49:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:49:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:48,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:49:48,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:49:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:48,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:49:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:48,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:48,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:48,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:49:48,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:48,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:49:48,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:49:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:49:48,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379367797] [2020-10-12 18:49:48,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:49:48,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:49:48,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871631457] [2020-10-12 18:49:48,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:49:48,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:49:48,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:49:48,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:49:48,624 INFO L87 Difference]: Start difference. First operand 11512 states and 16429 transitions. Second operand 17 states. [2020-10-12 18:49:49,067 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-12 18:49:49,288 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:49:50,055 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2020-10-12 18:49:50,262 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-10-12 18:49:50,556 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:50,850 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-10-12 18:49:51,080 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 18:49:51,324 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-10-12 18:49:51,612 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:51,893 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:52,182 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:52,425 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:49:52,847 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-12 18:49:53,112 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:53,396 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-12 18:49:53,661 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:53,951 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:54,244 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:54,606 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:49:55,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:49:55,405 INFO L93 Difference]: Finished difference Result 21703 states and 30892 transitions. [2020-10-12 18:49:55,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:49:55,406 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-12 18:49:55,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:49:55,456 INFO L225 Difference]: With dead ends: 21703 [2020-10-12 18:49:55,457 INFO L226 Difference]: Without dead ends: 17626 [2020-10-12 18:49:55,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:49:55,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17626 states. [2020-10-12 18:49:56,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17626 to 12123. [2020-10-12 18:49:56,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12123 states. [2020-10-12 18:49:56,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12123 states to 12123 states and 17305 transitions. [2020-10-12 18:49:56,591 INFO L78 Accepts]: Start accepts. Automaton has 12123 states and 17305 transitions. Word has length 132 [2020-10-12 18:49:56,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:49:56,592 INFO L479 AbstractCegarLoop]: Abstraction has 12123 states and 17305 transitions. [2020-10-12 18:49:56,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:49:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 12123 states and 17305 transitions. [2020-10-12 18:49:56,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:49:56,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:49:56,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:49:56,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:49:56,595 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:49:56,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:49:56,595 INFO L82 PathProgramCache]: Analyzing trace with hash 868467591, now seen corresponding path program 1 times [2020-10-12 18:49:56,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:49:56,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887815242] [2020-10-12 18:49:56,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:49:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:56,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:56,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:56,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:01,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:50:01,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:50:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:50:01,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:50:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:50:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-12 18:50:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:01,817 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:50:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:50:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:01,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:01,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:50:01,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:50:01,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:01,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:01,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:01,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:50:01,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:01,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:50:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:01,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:01,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:01,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:50:01,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:01,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:50:01,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:50:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:01,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:50:01,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:01,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:50:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:01,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:01,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:01,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:50:01,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:50:01,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:50:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:01,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:50:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:01,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:01,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:01,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:01,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:01,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:50:01,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:01,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:01,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:01,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:50:01,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:01,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:50:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:01,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:01,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:01,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:50:01,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:01,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:01,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:50:01,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:50:01,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 18:50:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:50:02,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:02,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:50:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:02,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:02,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:02,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:50:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:02,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:02,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:02,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:02,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:50:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:50:02,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:02,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:02,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:50:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:02,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:02,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:02,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:02,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:50:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:02,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:02,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:02,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:50:02,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:02,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:50:02,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:02,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:02,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:50:02,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:02,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:50:02,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887815242] [2020-10-12 18:50:02,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:50:02,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:50:02,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87915960] [2020-10-12 18:50:02,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:50:02,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:50:02,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:50:02,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:50:02,178 INFO L87 Difference]: Start difference. First operand 12123 states and 17305 transitions. Second operand 17 states. [2020-10-12 18:50:02,594 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-12 18:50:02,802 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:50:03,522 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2020-10-12 18:50:03,711 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-10-12 18:50:03,995 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-10-12 18:50:04,207 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-10-12 18:50:04,426 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-10-12 18:50:04,673 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:04,931 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:05,194 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:05,522 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:05,750 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:06,125 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-10-12 18:50:06,388 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-12 18:50:06,628 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:06,884 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:07,297 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:07,741 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:08,289 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:50:10,797 INFO L93 Difference]: Finished difference Result 23142 states and 33057 transitions. [2020-10-12 18:50:10,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:50:10,798 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-12 18:50:10,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:50:10,864 INFO L225 Difference]: With dead ends: 23142 [2020-10-12 18:50:10,864 INFO L226 Difference]: Without dead ends: 20225 [2020-10-12 18:50:10,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:50:10,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20225 states. [2020-10-12 18:50:12,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20225 to 12395. [2020-10-12 18:50:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12395 states. [2020-10-12 18:50:12,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12395 states to 12395 states and 17705 transitions. [2020-10-12 18:50:12,852 INFO L78 Accepts]: Start accepts. Automaton has 12395 states and 17705 transitions. Word has length 132 [2020-10-12 18:50:12,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:50:12,852 INFO L479 AbstractCegarLoop]: Abstraction has 12395 states and 17705 transitions. [2020-10-12 18:50:12,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:50:12,852 INFO L276 IsEmpty]: Start isEmpty. Operand 12395 states and 17705 transitions. [2020-10-12 18:50:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-12 18:50:12,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:50:12,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:50:12,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:50:12,855 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:50:12,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:50:12,855 INFO L82 PathProgramCache]: Analyzing trace with hash -80406331, now seen corresponding path program 1 times [2020-10-12 18:50:12,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:50:12,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208976917] [2020-10-12 18:50:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:50:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:12,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:12,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:12,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:13,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:13,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:17,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:17,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:50:17,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:50:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:50:17,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:50:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:50:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 18:50:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,072 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:50:18,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:50:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:50:18,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:50:18,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:18,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:18,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:50:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:50:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 18:50:18,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:50:18,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:50:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:18,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 18:50:18,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:50:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:50:18,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:50:18,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:18,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:50:18,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:50:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:50:18,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:50:18,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:50:18,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:18,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:50:18,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:50:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:18,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:18,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:18,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:18,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:18,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-12 18:50:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:18,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:50:18,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:18,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:18,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:50:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:18,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:50:18,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:18,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:18,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:50:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:18,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:18,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:18,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:18,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:18,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:50:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:18,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:18,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:50:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:18,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:50:18,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:18,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:50:18,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:18,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-12 18:50:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:18,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:18,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:18,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:50:18,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:18,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:50:18,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:50:18,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:18,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:50:18,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208976917] [2020-10-12 18:50:18,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:50:18,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:50:18,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406569655] [2020-10-12 18:50:18,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:50:18,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:50:18,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:50:18,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:50:18,429 INFO L87 Difference]: Start difference. First operand 12395 states and 17705 transitions. Second operand 17 states. [2020-10-12 18:50:18,873 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-12 18:50:19,087 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:50:19,818 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2020-10-12 18:50:20,013 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-12 18:50:20,242 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:20,436 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-10-12 18:50:20,699 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:20,977 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:21,250 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:21,526 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:21,820 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:22,055 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:50:22,476 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:22,745 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:23,024 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:23,286 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:23,553 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:23,832 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:24,156 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:50:25,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:50:25,220 INFO L93 Difference]: Finished difference Result 19811 states and 28336 transitions. [2020-10-12 18:50:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:50:25,221 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-10-12 18:50:25,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:50:25,251 INFO L225 Difference]: With dead ends: 19811 [2020-10-12 18:50:25,251 INFO L226 Difference]: Without dead ends: 18250 [2020-10-12 18:50:25,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2020-10-12 18:50:25,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18250 states. [2020-10-12 18:50:26,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18250 to 12602. [2020-10-12 18:50:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12602 states. [2020-10-12 18:50:26,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12602 states to 12602 states and 18019 transitions. [2020-10-12 18:50:26,185 INFO L78 Accepts]: Start accepts. Automaton has 12602 states and 18019 transitions. Word has length 132 [2020-10-12 18:50:26,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:50:26,185 INFO L479 AbstractCegarLoop]: Abstraction has 12602 states and 18019 transitions. [2020-10-12 18:50:26,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:50:26,185 INFO L276 IsEmpty]: Start isEmpty. Operand 12602 states and 18019 transitions. [2020-10-12 18:50:26,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-12 18:50:26,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:50:26,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:50:26,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:50:26,187 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:50:26,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:50:26,188 INFO L82 PathProgramCache]: Analyzing trace with hash 6028857, now seen corresponding path program 1 times [2020-10-12 18:50:26,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:50:26,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876923452] [2020-10-12 18:50:26,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:50:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:26,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:26,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:26,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:26,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:29,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking...