/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=NARROWEST --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-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 14:29:09,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 14:29:09,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 14:29:09,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 14:29:09,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 14:29:09,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 14:29:09,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 14:29:09,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 14:29:09,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 14:29:09,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 14:29:09,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 14:29:09,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 14:29:09,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 14:29:09,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 14:29:09,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 14:29:09,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 14:29:09,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 14:29:09,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 14:29:09,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 14:29:09,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 14:29:09,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 14:29:09,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 14:29:09,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 14:29:09,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 14:29:09,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 14:29:09,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 14:29:09,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 14:29:09,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 14:29:09,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 14:29:09,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 14:29:09,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 14:29:09,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 14:29:09,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 14:29:09,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 14:29:09,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 14:29:09,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 14:29:09,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 14:29:09,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 14:29:09,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 14:29:09,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 14:29:09,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 14:29:09,998 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 [2020-10-13 14:29:10,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 14:29:10,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 14:29:10,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 14:29:10,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 14:29:10,026 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 14:29:10,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 14:29:10,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 14:29:10,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 14:29:10,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 14:29:10,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 14:29:10,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 14:29:10,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 14:29:10,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 14:29:10,028 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 14:29:10,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 14:29:10,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 14:29:10,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 14:29:10,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 14:29:10,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 14:29:10,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 14:29:10,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 14:29:10,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 14:29:10,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 14:29:10,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 14:29:10,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 14:29:10,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 14:29:10,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 14:29:10,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 14:29:10,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 14:29:10,033 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 14:29:10,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 14:29:10,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 14:29:10,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 14:29:10,355 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 14:29:10,356 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 14:29:10,357 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2020-10-13 14:29:10,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b3a4d91/b1ece08092eb4c54875a7f7df8e48414/FLAG4d2774748 [2020-10-13 14:29:11,171 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 14:29:11,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2020-10-13 14:29:11,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b3a4d91/b1ece08092eb4c54875a7f7df8e48414/FLAG4d2774748 [2020-10-13 14:29:11,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56b3a4d91/b1ece08092eb4c54875a7f7df8e48414 [2020-10-13 14:29:11,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 14:29:11,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 14:29:11,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 14:29:11,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 14:29:11,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 14:29:11,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:29:11" (1/1) ... [2020-10-13 14:29:11,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1be01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:11, skipping insertion in model container [2020-10-13 14:29:11,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:29:11" (1/1) ... [2020-10-13 14:29:11,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 14:29:12,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 14:29:14,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:29:14,309 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 14:29:15,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 14:29:15,748 INFO L208 MainTranslator]: Completed translation [2020-10-13 14:29:15,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15 WrapperNode [2020-10-13 14:29:15,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 14:29:15,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 14:29:15,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 14:29:15,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 14:29:15,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (1/1) ... [2020-10-13 14:29:15,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (1/1) ... [2020-10-13 14:29:15,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (1/1) ... [2020-10-13 14:29:15,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (1/1) ... [2020-10-13 14:29:15,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (1/1) ... [2020-10-13 14:29:16,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (1/1) ... [2020-10-13 14:29:16,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (1/1) ... [2020-10-13 14:29:16,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 14:29:16,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 14:29:16,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 14:29:16,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 14:29:16,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (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 [2020-10-13 14:29:16,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 14:29:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 14:29:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 14:29:16,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 14:29:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 14:29:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 14:29:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 14:29:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 14:29:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 14:29:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 14:29:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 14:29:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 14:29:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 14:29:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 14:29:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 14:29:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 14:29:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 14:29:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-13 14:29:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-13 14:29:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 14:29:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 14:29:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 14:29:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 14:29:16,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 14:29:21,888 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 14:29:21,888 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 14:29:21,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:29:21 BoogieIcfgContainer [2020-10-13 14:29:21,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 14:29:21,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 14:29:21,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 14:29:21,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 14:29:21,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:29:11" (1/3) ... [2020-10-13 14:29:21,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5c45a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:29:21, skipping insertion in model container [2020-10-13 14:29:21,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:29:15" (2/3) ... [2020-10-13 14:29:21,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5c45a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:29:21, skipping insertion in model container [2020-10-13 14:29:21,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:29:21" (3/3) ... [2020-10-13 14:29:21,914 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2020-10-13 14:29:21,925 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 14:29:21,935 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-10-13 14:29:21,949 INFO L251 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-10-13 14:29:21,982 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 14:29:21,983 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 14:29:21,983 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 14:29:21,983 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 14:29:21,983 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 14:29:21,983 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 14:29:21,983 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 14:29:21,984 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 14:29:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states. [2020-10-13 14:29:22,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-13 14:29:22,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:29:22,068 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] [2020-10-13 14:29:22,069 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:29:22,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:29:22,076 INFO L82 PathProgramCache]: Analyzing trace with hash -687871141, now seen corresponding path program 1 times [2020-10-13 14:29:22,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:29:22,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682209370] [2020-10-13 14:29:22,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:29:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:29:22,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:23,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:23,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:23,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:23,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:24,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:26,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:26,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:26,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:27,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:27,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:29:27,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 14:29:27,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 14:29:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-13 14:29:27,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:29:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:29:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 14:29:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 14:29:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 14:29:30,483 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 769 [2020-10-13 14:29:30,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:29:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:29:30,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:30,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:29:30,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:29:30,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:29:30,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 14:29:30,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:29:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:29:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:29:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:29:30,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:29:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:29:30,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682209370] [2020-10-13 14:29:30,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:29:30,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:29:30,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187937925] [2020-10-13 14:29:30,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:29:30,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:29:30,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:29:30,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:29:30,717 INFO L87 Difference]: Start difference. First operand 2087 states. Second operand 7 states. [2020-10-13 14:29:33,263 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification that was a NOOP. DAG size: 773 [2020-10-13 14:29:58,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:29:58,850 INFO L93 Difference]: Finished difference Result 5900 states and 9995 transitions. [2020-10-13 14:29:58,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:29:58,853 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-13 14:29:58,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:29:58,914 INFO L225 Difference]: With dead ends: 5900 [2020-10-13 14:29:58,914 INFO L226 Difference]: Without dead ends: 4648 [2020-10-13 14:29:58,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:29:58,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2020-10-13 14:29:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 3316. [2020-10-13 14:29:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2020-10-13 14:29:59,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4509 transitions. [2020-10-13 14:29:59,200 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4509 transitions. Word has length 105 [2020-10-13 14:29:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:29:59,201 INFO L479 AbstractCegarLoop]: Abstraction has 3316 states and 4509 transitions. [2020-10-13 14:29:59,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:29:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4509 transitions. [2020-10-13 14:29:59,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-13 14:29:59,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:29:59,214 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] [2020-10-13 14:29:59,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 14:29:59,215 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:29:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:29:59,215 INFO L82 PathProgramCache]: Analyzing trace with hash -252207805, now seen corresponding path program 1 times [2020-10-13 14:29:59,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:29:59,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554739877] [2020-10-13 14:29:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:29:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:29:59,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:29:59,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:00,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:00,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:01,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:01,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:04,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:04,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 14:30:04,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 14:30:04,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-13 14:30:04,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:30:04,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 14:30:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 14:30:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:30:06,930 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification that was a NOOP. DAG size: 769 [2020-10-13 14:30:06,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:30:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:06,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:07,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:07,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:30:07,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:30:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 14:30:07,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:30:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:30:07,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:30:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:30:07,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554739877] [2020-10-13 14:30:07,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:30:07,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:30:07,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955746804] [2020-10-13 14:30:07,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:30:07,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:30:07,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:30:07,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:30:07,108 INFO L87 Difference]: Start difference. First operand 3316 states and 4509 transitions. Second operand 7 states. [2020-10-13 14:30:09,705 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification that was a NOOP. DAG size: 773 [2020-10-13 14:30:34,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:30:34,648 INFO L93 Difference]: Finished difference Result 13182 states and 18842 transitions. [2020-10-13 14:30:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:30:34,648 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 106 [2020-10-13 14:30:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:30:34,720 INFO L225 Difference]: With dead ends: 13182 [2020-10-13 14:30:34,721 INFO L226 Difference]: Without dead ends: 10539 [2020-10-13 14:30:34,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:30:34,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2020-10-13 14:30:35,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 7243. [2020-10-13 14:30:35,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7243 states. [2020-10-13 14:30:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7243 states to 7243 states and 10399 transitions. [2020-10-13 14:30:35,054 INFO L78 Accepts]: Start accepts. Automaton has 7243 states and 10399 transitions. Word has length 106 [2020-10-13 14:30:35,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:30:35,057 INFO L479 AbstractCegarLoop]: Abstraction has 7243 states and 10399 transitions. [2020-10-13 14:30:35,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:30:35,057 INFO L276 IsEmpty]: Start isEmpty. Operand 7243 states and 10399 transitions. [2020-10-13 14:30:35,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 14:30:35,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:30:35,088 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] [2020-10-13 14:30:35,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 14:30:35,089 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:30:35,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:30:35,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1516702367, now seen corresponding path program 1 times [2020-10-13 14:30:35,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:30:35,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083603525] [2020-10-13 14:30:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:30:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:35,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:35,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:35,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:35,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:36,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:36,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:37,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:38,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:40,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:40,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 14:30:40,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:30:40,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-13 14:30:40,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:30:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 14:30:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 14:30:40,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:30:42,762 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 769 [2020-10-13 14:30:42,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:30:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:30:42,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:30:42,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:30:42,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:30:42,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:30:42,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 14:30:42,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:30:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:30:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:30:42,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:30:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:30:42,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:30:42,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083603525] [2020-10-13 14:30:42,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:30:42,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:30:42,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745864175] [2020-10-13 14:30:42,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:30:42,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:30:42,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:30:42,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:30:42,911 INFO L87 Difference]: Start difference. First operand 7243 states and 10399 transitions. Second operand 7 states. [2020-10-13 14:30:45,343 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification that was a NOOP. DAG size: 773 [2020-10-13 14:31:00,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:31:00,233 INFO L93 Difference]: Finished difference Result 23578 states and 34224 transitions. [2020-10-13 14:31:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:31:00,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-13 14:31:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:31:00,326 INFO L225 Difference]: With dead ends: 23578 [2020-10-13 14:31:00,326 INFO L226 Difference]: Without dead ends: 19911 [2020-10-13 14:31:00,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:31:00,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19911 states. [2020-10-13 14:31:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19911 to 12144. [2020-10-13 14:31:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12144 states. [2020-10-13 14:31:00,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12144 states to 12144 states and 17661 transitions. [2020-10-13 14:31:00,911 INFO L78 Accepts]: Start accepts. Automaton has 12144 states and 17661 transitions. Word has length 107 [2020-10-13 14:31:00,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:31:00,919 INFO L479 AbstractCegarLoop]: Abstraction has 12144 states and 17661 transitions. [2020-10-13 14:31:00,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:31:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand 12144 states and 17661 transitions. [2020-10-13 14:31:00,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 14:31:00,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:31:00,948 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] [2020-10-13 14:31:00,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 14:31:00,949 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:31:00,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:31:00,949 INFO L82 PathProgramCache]: Analyzing trace with hash -50946715, now seen corresponding path program 1 times [2020-10-13 14:31:00,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:31:00,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440604148] [2020-10-13 14:31:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:31:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:01,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:01,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:01,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:01,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:01,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:02,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:02,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:02,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:06,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:06,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 14:31:06,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 14:31:06,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 14:31:06,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:31:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 14:31:06,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 14:31:06,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:09,051 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification that was a NOOP. DAG size: 769 [2020-10-13 14:31:09,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:31:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:09,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:09,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:09,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:31:09,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:31:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 14:31:09,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:31:09,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:31:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:31:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:31:09,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440604148] [2020-10-13 14:31:09,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:31:09,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:31:09,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287195657] [2020-10-13 14:31:09,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:31:09,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:31:09,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:31:09,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:31:09,170 INFO L87 Difference]: Start difference. First operand 12144 states and 17661 transitions. Second operand 7 states. [2020-10-13 14:31:11,732 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification that was a NOOP. DAG size: 773 [2020-10-13 14:31:35,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:31:35,776 INFO L93 Difference]: Finished difference Result 36452 states and 52873 transitions. [2020-10-13 14:31:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:31:35,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-13 14:31:35,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:31:35,859 INFO L225 Difference]: With dead ends: 36452 [2020-10-13 14:31:35,859 INFO L226 Difference]: Without dead ends: 31663 [2020-10-13 14:31:35,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:31:35,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31663 states. [2020-10-13 14:31:36,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31663 to 21828. [2020-10-13 14:31:36,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21828 states. [2020-10-13 14:31:36,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21828 states to 21828 states and 31743 transitions. [2020-10-13 14:31:36,928 INFO L78 Accepts]: Start accepts. Automaton has 21828 states and 31743 transitions. Word has length 107 [2020-10-13 14:31:36,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:31:36,930 INFO L479 AbstractCegarLoop]: Abstraction has 21828 states and 31743 transitions. [2020-10-13 14:31:36,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:31:36,930 INFO L276 IsEmpty]: Start isEmpty. Operand 21828 states and 31743 transitions. [2020-10-13 14:31:36,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 14:31:36,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:31:36,974 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] [2020-10-13 14:31:36,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 14:31:36,975 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:31:36,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:31:36,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1971475685, now seen corresponding path program 1 times [2020-10-13 14:31:36,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:31:36,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078517082] [2020-10-13 14:31:36,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:31:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:37,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:37,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:37,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:37,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:38,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:38,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:38,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:40,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:40,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:41,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:42,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:42,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 14:31:42,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 14:31:42,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 14:31:42,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 14:31:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 14:31:42,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 14:31:42,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 14:31:44,684 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification that was a NOOP. DAG size: 769 [2020-10-13 14:31:44,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:31:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:31:44,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:31:44,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:31:44,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:31:44,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:31:44,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 14:31:44,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:31:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:31:44,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:31:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:31:44,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:31:44,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:31:44,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078517082] [2020-10-13 14:31:44,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:31:44,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 14:31:44,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771154731] [2020-10-13 14:31:44,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 14:31:44,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:31:44,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 14:31:44,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 14:31:44,821 INFO L87 Difference]: Start difference. First operand 21828 states and 31743 transitions. Second operand 9 states. [2020-10-13 14:31:47,365 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification that was a NOOP. DAG size: 773 [2020-10-13 14:32:03,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:32:03,330 INFO L93 Difference]: Finished difference Result 55588 states and 82209 transitions. [2020-10-13 14:32:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 14:32:03,331 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-10-13 14:32:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:32:03,432 INFO L225 Difference]: With dead ends: 55588 [2020-10-13 14:32:03,433 INFO L226 Difference]: Without dead ends: 43495 [2020-10-13 14:32:03,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-13 14:32:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43495 states. [2020-10-13 14:32:04,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43495 to 21898. [2020-10-13 14:32:04,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21898 states. [2020-10-13 14:32:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21898 states to 21898 states and 31787 transitions. [2020-10-13 14:32:04,765 INFO L78 Accepts]: Start accepts. Automaton has 21898 states and 31787 transitions. Word has length 108 [2020-10-13 14:32:04,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:32:04,765 INFO L479 AbstractCegarLoop]: Abstraction has 21898 states and 31787 transitions. [2020-10-13 14:32:04,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 14:32:04,765 INFO L276 IsEmpty]: Start isEmpty. Operand 21898 states and 31787 transitions. [2020-10-13 14:32:04,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 14:32:04,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:32:04,798 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] [2020-10-13 14:32:04,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 14:32:04,799 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:32:04,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:32:04,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2076363373, now seen corresponding path program 1 times [2020-10-13 14:32:04,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:32:04,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319744502] [2020-10-13 14:32:04,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:32:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:04,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:05,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:05,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:05,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:06,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:06,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:06,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:09,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:09,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 14:32:09,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 14:32:09,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 14:32:09,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:09,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:32:09,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:32:09,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 14:32:09,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:12,270 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 769 [2020-10-13 14:32:12,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:32:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:12,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:12,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:12,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:32:12,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:32:12,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 14:32:12,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:12,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:32:12,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:32:12,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:32:12,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:32:12,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319744502] [2020-10-13 14:32:12,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:32:12,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:32:12,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814387849] [2020-10-13 14:32:12,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:32:12,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:32:12,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:32:12,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:32:12,367 INFO L87 Difference]: Start difference. First operand 21898 states and 31787 transitions. Second operand 7 states. [2020-10-13 14:32:14,892 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification that was a NOOP. DAG size: 773 [2020-10-13 14:32:31,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 14:32:31,973 INFO L93 Difference]: Finished difference Result 62312 states and 91610 transitions. [2020-10-13 14:32:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 14:32:31,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-13 14:32:31,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 14:32:32,044 INFO L225 Difference]: With dead ends: 62312 [2020-10-13 14:32:32,045 INFO L226 Difference]: Without dead ends: 47530 [2020-10-13 14:32:32,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-13 14:32:32,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47530 states. [2020-10-13 14:32:33,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47530 to 29736. [2020-10-13 14:32:33,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29736 states. [2020-10-13 14:32:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29736 states to 29736 states and 43379 transitions. [2020-10-13 14:32:33,463 INFO L78 Accepts]: Start accepts. Automaton has 29736 states and 43379 transitions. Word has length 108 [2020-10-13 14:32:33,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 14:32:33,464 INFO L479 AbstractCegarLoop]: Abstraction has 29736 states and 43379 transitions. [2020-10-13 14:32:33,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 14:32:33,464 INFO L276 IsEmpty]: Start isEmpty. Operand 29736 states and 43379 transitions. [2020-10-13 14:32:33,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 14:32:33,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 14:32:33,490 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] [2020-10-13 14:32:33,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 14:32:33,490 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr28ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr26ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr24ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr22ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr25ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr27ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION, mainErr23ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 14:32:33,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 14:32:33,491 INFO L82 PathProgramCache]: Analyzing trace with hash 20440747, now seen corresponding path program 1 times [2020-10-13 14:32:33,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 14:32:33,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480177604] [2020-10-13 14:32:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 14:32:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:33,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:33,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:33,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:33,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:34,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:34,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:35,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:38,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:38,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 14:32:38,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 14:32:38,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 14:32:38,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:38,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 14:32:38,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 14:32:38,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 14:32:38,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:41,011 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification that was a NOOP. DAG size: 769 [2020-10-13 14:32:41,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 14:32:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 14:32:41,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 14:32:41,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 14:32:41,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 14:32:41,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 14:32:41,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 14:32:41,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 14:32:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 14:32:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 14:32:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 14:32:41,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 14:32:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 14:32:41,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480177604] [2020-10-13 14:32:41,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 14:32:41,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 14:32:41,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059900369] [2020-10-13 14:32:41,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 14:32:41,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 14:32:41,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 14:32:41,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 14:32:41,096 INFO L87 Difference]: Start difference. First operand 29736 states and 43379 transitions. Second operand 7 states. [2020-10-13 14:32:43,862 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification that was a NOOP. DAG size: 773