/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-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:39:52,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:39:52,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:39:52,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:39:52,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:39:52,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:39:52,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:39:52,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:39:52,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:39:52,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:39:52,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:39:52,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:39:52,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:39:52,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:39:52,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:39:52,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:39:52,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:39:52,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:39:52,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:39:52,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:39:52,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:39:52,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:39:52,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:39:52,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:39:52,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:39:52,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:39:52,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:39:52,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:39:52,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:39:52,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:39:52,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:39:52,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:39:52,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:39:52,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:39:52,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:39:52,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:39:52,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:39:52,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:39:52,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:39:52,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:39:52,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:39:52,996 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 19:39:53,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:39:53,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:39:53,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:39:53,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:39:53,028 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:39:53,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:39:53,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:39:53,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:39:53,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:39:53,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:39:53,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:39:53,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:39:53,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:39:53,030 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:39:53,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:39:53,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:39:53,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:39:53,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:39:53,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:39:53,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:39:53,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:39:53,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:39:53,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:39:53,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:39:53,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:39:53,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:39:53,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:39:53,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:39:53,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:39:53,034 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 19:39:53,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:39:53,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:39:53,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:39:53,353 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:39:53,353 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:39:53,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:39:53,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a9c3d4db/83ff887481d9443bbccb39ae43f780cc/FLAG84d6466da [2020-10-12 19:39:54,104 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:39:54,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:39:54,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a9c3d4db/83ff887481d9443bbccb39ae43f780cc/FLAG84d6466da [2020-10-12 19:39:54,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a9c3d4db/83ff887481d9443bbccb39ae43f780cc [2020-10-12 19:39:54,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:39:54,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:39:54,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:39:54,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:39:54,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:39:54,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:39:54" (1/1) ... [2020-10-12 19:39:54,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c32aca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:54, skipping insertion in model container [2020-10-12 19:39:54,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:39:54" (1/1) ... [2020-10-12 19:39:54,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:39:54,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:39:55,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:39:55,360 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:39:55,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:39:55,715 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:39:55,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55 WrapperNode [2020-10-12 19:39:55,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:39:55,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:39:55,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:39:55,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:39:55,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (1/1) ... [2020-10-12 19:39:55,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (1/1) ... [2020-10-12 19:39:55,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (1/1) ... [2020-10-12 19:39:55,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (1/1) ... [2020-10-12 19:39:55,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (1/1) ... [2020-10-12 19:39:55,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (1/1) ... [2020-10-12 19:39:55,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (1/1) ... [2020-10-12 19:39:55,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:39:55,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:39:55,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:39:55,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:39:55,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (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 19:39:56,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:39:56,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:39:56,024 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:39:56,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:39:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:39:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:39:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:39:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 19:39:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:39:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:39:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:39:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:39:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:39:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:39:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:39:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:39:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:39:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:39:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:39:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:39:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:39:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:39:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:39:58,422 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:39:58,423 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:39:58,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:39:58 BoogieIcfgContainer [2020-10-12 19:39:58,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:39:58,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:39:58,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:39:58,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:39:58,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:39:54" (1/3) ... [2020-10-12 19:39:58,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d67a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:39:58, skipping insertion in model container [2020-10-12 19:39:58,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:39:55" (2/3) ... [2020-10-12 19:39:58,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d67a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:39:58, skipping insertion in model container [2020-10-12 19:39:58,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:39:58" (3/3) ... [2020-10-12 19:39:58,440 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:39:58,451 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:39:58,459 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-12 19:39:58,473 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-12 19:39:58,498 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:39:58,498 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:39:58,498 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:39:58,498 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:39:58,498 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:39:58,498 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:39:58,499 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:39:58,499 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:39:58,533 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2020-10-12 19:39:58,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-12 19:39:58,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:39:58,561 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] [2020-10-12 19:39:58,562 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:39:58,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:39:58,569 INFO L82 PathProgramCache]: Analyzing trace with hash 400936191, now seen corresponding path program 1 times [2020-10-12 19:39:58,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:39:58,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793318848] [2020-10-12 19:39:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:39:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:39:59,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:59,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:59,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:59,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:59,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:39:59,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:00,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:00,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:00,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:00,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:01,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:03,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:03,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-12 19:40:03,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:40:03,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-12 19:40:03,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:40:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 19:40:03,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 19:40:03,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:40:04,824 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:40:04,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:04,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:04,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:04,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:04,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:04,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:40:04,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:04,882 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 19:40:04,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793318848] [2020-10-12 19:40:04,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:04,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:40:04,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221357143] [2020-10-12 19:40:04,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:40:04,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:04,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:40:04,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:40:04,909 INFO L87 Difference]: Start difference. First operand 631 states. Second operand 7 states. [2020-10-12 19:40:05,485 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-12 19:40:10,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:10,752 INFO L93 Difference]: Finished difference Result 2103 states and 3490 transitions. [2020-10-12 19:40:10,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:40:10,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2020-10-12 19:40:10,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:10,794 INFO L225 Difference]: With dead ends: 2103 [2020-10-12 19:40:10,794 INFO L226 Difference]: Without dead ends: 1687 [2020-10-12 19:40:10,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:40:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2020-10-12 19:40:10,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1005. [2020-10-12 19:40:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2020-10-12 19:40:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1365 transitions. [2020-10-12 19:40:10,936 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1365 transitions. Word has length 75 [2020-10-12 19:40:10,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:10,937 INFO L479 AbstractCegarLoop]: Abstraction has 1005 states and 1365 transitions. [2020-10-12 19:40:10,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:40:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1365 transitions. [2020-10-12 19:40:10,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-12 19:40:10,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:10,944 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] [2020-10-12 19:40:10,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:40:10,950 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:10,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:10,950 INFO L82 PathProgramCache]: Analyzing trace with hash 446163381, now seen corresponding path program 1 times [2020-10-12 19:40:10,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:10,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269555423] [2020-10-12 19:40:10,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:11,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:11,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:11,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:12,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:12,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:12,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:16,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:16,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-12 19:40:16,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:40:16,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 19:40:16,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:16,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:40:16,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:40:16,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 19:40:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-10-12 19:40:16,562 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:40:16,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:16,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:16,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:16,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:16,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:16,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:40:16,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:16,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:16,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:16,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:16,613 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 19:40:16,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269555423] [2020-10-12 19:40:16,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:16,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:40:16,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918455250] [2020-10-12 19:40:16,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:40:16,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:16,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:40:16,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:40:16,618 INFO L87 Difference]: Start difference. First operand 1005 states and 1365 transitions. Second operand 7 states. [2020-10-12 19:40:17,144 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2020-10-12 19:40:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:20,867 INFO L93 Difference]: Finished difference Result 4541 states and 6535 transitions. [2020-10-12 19:40:20,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:40:20,870 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-12 19:40:20,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:20,890 INFO L225 Difference]: With dead ends: 4541 [2020-10-12 19:40:20,891 INFO L226 Difference]: Without dead ends: 3727 [2020-10-12 19:40:20,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:40:20,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2020-10-12 19:40:21,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 2190. [2020-10-12 19:40:21,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2190 states. [2020-10-12 19:40:21,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 3169 transitions. [2020-10-12 19:40:21,014 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 3169 transitions. Word has length 76 [2020-10-12 19:40:21,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:21,015 INFO L479 AbstractCegarLoop]: Abstraction has 2190 states and 3169 transitions. [2020-10-12 19:40:21,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:40:21,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 3169 transitions. [2020-10-12 19:40:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:40:21,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:21,024 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] [2020-10-12 19:40:21,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:40:21,025 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:21,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:21,025 INFO L82 PathProgramCache]: Analyzing trace with hash -446635459, now seen corresponding path program 1 times [2020-10-12 19:40:21,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:21,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063197282] [2020-10-12 19:40:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:21,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:21,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:21,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:21,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:21,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:21,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:22,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:23,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:26,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:26,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:26,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:40:26,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:40:26,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-12 19:40:26,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:40:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:40:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 19:40:26,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:26,950 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:40:26,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:26,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:26,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:26,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:26,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:40:26,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:26,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:26,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:27,020 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 19:40:27,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063197282] [2020-10-12 19:40:27,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:27,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:40:27,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675623809] [2020-10-12 19:40:27,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:40:27,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:27,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:40:27,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:40:27,023 INFO L87 Difference]: Start difference. First operand 2190 states and 3169 transitions. Second operand 10 states. [2020-10-12 19:40:28,181 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 341 DAG size of output: 325 [2020-10-12 19:40:35,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:35,112 INFO L93 Difference]: Finished difference Result 12257 states and 18019 transitions. [2020-10-12 19:40:35,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 19:40:35,113 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-10-12 19:40:35,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:35,166 INFO L225 Difference]: With dead ends: 12257 [2020-10-12 19:40:35,166 INFO L226 Difference]: Without dead ends: 11355 [2020-10-12 19:40:35,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:40:35,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11355 states. [2020-10-12 19:40:35,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11355 to 3316. [2020-10-12 19:40:35,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2020-10-12 19:40:35,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4812 transitions. [2020-10-12 19:40:35,503 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4812 transitions. Word has length 77 [2020-10-12 19:40:35,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:35,508 INFO L479 AbstractCegarLoop]: Abstraction has 3316 states and 4812 transitions. [2020-10-12 19:40:35,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:40:35,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4812 transitions. [2020-10-12 19:40:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:40:35,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:35,518 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] [2020-10-12 19:40:35,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:40:35,519 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:35,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:35,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1525561129, now seen corresponding path program 1 times [2020-10-12 19:40:35,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:35,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051478879] [2020-10-12 19:40:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:35,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:35,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:35,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:35,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:36,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:36,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:39,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:39,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:39,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:40,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:40,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:40,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:40,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:40,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:40:40,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:40:40,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:40:40,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:40:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:40:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:40:40,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:41,412 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:40:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:41,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:41,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:41,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:41,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:41,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 19:40:41,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:41,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:40:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:40:41,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:40:41,562 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 19:40:41,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051478879] [2020-10-12 19:40:41,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:41,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 19:40:41,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322956345] [2020-10-12 19:40:41,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:40:41,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:41,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:40:41,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:40:41,565 INFO L87 Difference]: Start difference. First operand 3316 states and 4812 transitions. Second operand 10 states. [2020-10-12 19:40:42,363 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-12 19:40:46,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:46,100 INFO L93 Difference]: Finished difference Result 6297 states and 9306 transitions. [2020-10-12 19:40:46,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 19:40:46,102 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-10-12 19:40:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:46,118 INFO L225 Difference]: With dead ends: 6297 [2020-10-12 19:40:46,118 INFO L226 Difference]: Without dead ends: 3776 [2020-10-12 19:40:46,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:40:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2020-10-12 19:40:46,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 2082. [2020-10-12 19:40:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2020-10-12 19:40:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2989 transitions. [2020-10-12 19:40:46,307 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2989 transitions. Word has length 77 [2020-10-12 19:40:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:46,307 INFO L479 AbstractCegarLoop]: Abstraction has 2082 states and 2989 transitions. [2020-10-12 19:40:46,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:40:46,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2989 transitions. [2020-10-12 19:40:46,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:40:46,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:46,312 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] [2020-10-12 19:40:46,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:40:46,312 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:46,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:46,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1034339041, now seen corresponding path program 1 times [2020-10-12 19:40:46,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:46,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088482363] [2020-10-12 19:40:46,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:46,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:46,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:46,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:46,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:47,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:49,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:49,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:50,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:50,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:50,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:51,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:51,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:51,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:40:51,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:40:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:40:51,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:40:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-12 19:40:51,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 19:40:51,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:52,019 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:40:52,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:40:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:52,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:52,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:40:52,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:40:52,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:40:52,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:40:52,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:40:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:40:52,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:40:52,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:40:52,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:40:52,071 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 19:40:52,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088482363] [2020-10-12 19:40:52,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:40:52,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:40:52,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721887888] [2020-10-12 19:40:52,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:40:52,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:40:52,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:40:52,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:40:52,074 INFO L87 Difference]: Start difference. First operand 2082 states and 2989 transitions. Second operand 11 states. [2020-10-12 19:40:52,638 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2020-10-12 19:40:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:40:58,268 INFO L93 Difference]: Finished difference Result 9061 states and 13468 transitions. [2020-10-12 19:40:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 19:40:58,269 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-10-12 19:40:58,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:40:58,298 INFO L225 Difference]: With dead ends: 9061 [2020-10-12 19:40:58,298 INFO L226 Difference]: Without dead ends: 8120 [2020-10-12 19:40:58,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2020-10-12 19:40:58,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8120 states. [2020-10-12 19:40:58,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8120 to 2633. [2020-10-12 19:40:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2633 states. [2020-10-12 19:40:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3807 transitions. [2020-10-12 19:40:58,550 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3807 transitions. Word has length 77 [2020-10-12 19:40:58,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:40:58,550 INFO L479 AbstractCegarLoop]: Abstraction has 2633 states and 3807 transitions. [2020-10-12 19:40:58,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:40:58,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3807 transitions. [2020-10-12 19:40:58,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:40:58,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:40:58,554 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] [2020-10-12 19:40:58,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:40:58,555 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:40:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:40:58,555 INFO L82 PathProgramCache]: Analyzing trace with hash 528235166, now seen corresponding path program 1 times [2020-10-12 19:40:58,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:40:58,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812565309] [2020-10-12 19:40:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:40:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:40:58,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:58,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:58,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:58,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:59,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:40:59,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:00,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:00,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:00,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:01,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:01,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:01,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:03,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:03,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:03,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:03,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:41:03,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:41:03,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 19:41:03,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:03,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:41:03,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:41:03,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 19:41:03,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:04,319 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:41:04,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:04,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:04,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:04,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:04,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:04,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 19:41:04,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:41:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:41:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:04,405 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 19:41:04,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812565309] [2020-10-12 19:41:04,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:04,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:41:04,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188108033] [2020-10-12 19:41:04,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:41:04,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:04,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:41:04,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:41:04,408 INFO L87 Difference]: Start difference. First operand 2633 states and 3807 transitions. Second operand 12 states. [2020-10-12 19:41:04,993 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-12 19:41:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:09,225 INFO L93 Difference]: Finished difference Result 6920 states and 10266 transitions. [2020-10-12 19:41:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:41:09,227 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-12 19:41:09,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:09,243 INFO L225 Difference]: With dead ends: 6920 [2020-10-12 19:41:09,243 INFO L226 Difference]: Without dead ends: 5852 [2020-10-12 19:41:09,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:41:09,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5852 states. [2020-10-12 19:41:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5852 to 2662. [2020-10-12 19:41:09,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2662 states. [2020-10-12 19:41:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2662 states to 2662 states and 3848 transitions. [2020-10-12 19:41:09,520 INFO L78 Accepts]: Start accepts. Automaton has 2662 states and 3848 transitions. Word has length 77 [2020-10-12 19:41:09,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:09,520 INFO L479 AbstractCegarLoop]: Abstraction has 2662 states and 3848 transitions. [2020-10-12 19:41:09,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:41:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2662 states and 3848 transitions. [2020-10-12 19:41:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:41:09,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:09,524 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] [2020-10-12 19:41:09,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:41:09,525 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:09,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:09,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1254608712, now seen corresponding path program 1 times [2020-10-12 19:41:09,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:09,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676051399] [2020-10-12 19:41:09,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:09,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:09,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:09,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:10,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:10,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:10,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:10,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:10,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:12,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:12,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:12,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:14,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:14,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:41:14,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:41:14,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 19:41:14,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:41:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:41:14,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 19:41:14,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:15,239 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:41:15,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:15,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:15,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:15,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:15,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:41:15,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:15,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:15,290 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 19:41:15,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676051399] [2020-10-12 19:41:15,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:15,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:41:15,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97854086] [2020-10-12 19:41:15,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:41:15,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:15,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:41:15,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:41:15,293 INFO L87 Difference]: Start difference. First operand 2662 states and 3848 transitions. Second operand 11 states. [2020-10-12 19:41:15,923 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2020-10-12 19:41:22,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:22,051 INFO L93 Difference]: Finished difference Result 7322 states and 10718 transitions. [2020-10-12 19:41:22,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 19:41:22,052 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-10-12 19:41:22,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:22,065 INFO L225 Difference]: With dead ends: 7322 [2020-10-12 19:41:22,066 INFO L226 Difference]: Without dead ends: 6214 [2020-10-12 19:41:22,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2020-10-12 19:41:22,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2020-10-12 19:41:22,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 2676. [2020-10-12 19:41:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2676 states. [2020-10-12 19:41:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 3865 transitions. [2020-10-12 19:41:22,425 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 3865 transitions. Word has length 77 [2020-10-12 19:41:22,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:22,425 INFO L479 AbstractCegarLoop]: Abstraction has 2676 states and 3865 transitions. [2020-10-12 19:41:22,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:41:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 3865 transitions. [2020-10-12 19:41:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:41:22,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:22,429 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] [2020-10-12 19:41:22,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:41:22,429 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:22,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:22,430 INFO L82 PathProgramCache]: Analyzing trace with hash -569516735, now seen corresponding path program 1 times [2020-10-12 19:41:22,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:22,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958836587] [2020-10-12 19:41:22,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:22,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:22,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:22,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:22,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:22,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:22,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:23,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:23,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:24,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:25,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:25,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:26,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:26,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:26,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:27,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:27,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:27,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:27,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:27,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:41:27,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 19:41:27,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:41:27,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:41:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:41:27,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 19:41:27,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:28,129 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:41:28,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:28,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:28,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:28,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:41:28,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:28,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:28,164 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 19:41:28,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958836587] [2020-10-12 19:41:28,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:28,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:41:28,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23082043] [2020-10-12 19:41:28,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:41:28,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:28,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:41:28,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:41:28,166 INFO L87 Difference]: Start difference. First operand 2676 states and 3865 transitions. Second operand 12 states. [2020-10-12 19:41:28,773 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-10-12 19:41:35,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:35,605 INFO L93 Difference]: Finished difference Result 15065 states and 22255 transitions. [2020-10-12 19:41:35,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-12 19:41:35,606 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-12 19:41:35,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:35,627 INFO L225 Difference]: With dead ends: 15065 [2020-10-12 19:41:35,627 INFO L226 Difference]: Without dead ends: 13719 [2020-10-12 19:41:35,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=309, Invalid=1331, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 19:41:35,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13719 states. [2020-10-12 19:41:36,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13719 to 2706. [2020-10-12 19:41:36,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2706 states. [2020-10-12 19:41:36,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3910 transitions. [2020-10-12 19:41:36,058 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3910 transitions. Word has length 77 [2020-10-12 19:41:36,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:36,058 INFO L479 AbstractCegarLoop]: Abstraction has 2706 states and 3910 transitions. [2020-10-12 19:41:36,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:41:36,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3910 transitions. [2020-10-12 19:41:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:41:36,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:36,062 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] [2020-10-12 19:41:36,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:41:36,062 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:36,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:36,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1779652977, now seen corresponding path program 1 times [2020-10-12 19:41:36,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:36,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740063954] [2020-10-12 19:41:36,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:36,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:36,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:38,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:38,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:38,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:39,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:39,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:39,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:40,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:40,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:40,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:40,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:41,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:41,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:41:41,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-12 19:41:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 19:41:41,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:41:41,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:41:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 19:41:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:41,835 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:41:41,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:41,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:41,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:41,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:41,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:41,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:41:41,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:41,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:41,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:41,895 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 19:41:41,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740063954] [2020-10-12 19:41:41,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:41,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:41:41,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470946024] [2020-10-12 19:41:41,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:41:41,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:41,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:41:41,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:41:41,898 INFO L87 Difference]: Start difference. First operand 2706 states and 3910 transitions. Second operand 12 states. [2020-10-12 19:41:42,504 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-12 19:41:47,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:47,631 INFO L93 Difference]: Finished difference Result 6705 states and 9945 transitions. [2020-10-12 19:41:47,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:41:47,631 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-12 19:41:47,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:47,639 INFO L225 Difference]: With dead ends: 6705 [2020-10-12 19:41:47,639 INFO L226 Difference]: Without dead ends: 5284 [2020-10-12 19:41:47,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:41:47,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2020-10-12 19:41:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 3080. [2020-10-12 19:41:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3080 states. [2020-10-12 19:41:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 4483 transitions. [2020-10-12 19:41:48,233 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 4483 transitions. Word has length 77 [2020-10-12 19:41:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:48,233 INFO L479 AbstractCegarLoop]: Abstraction has 3080 states and 4483 transitions. [2020-10-12 19:41:48,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:41:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 4483 transitions. [2020-10-12 19:41:48,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:41:48,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:48,238 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] [2020-10-12 19:41:48,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:41:48,238 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:48,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:48,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1650202232, now seen corresponding path program 1 times [2020-10-12 19:41:48,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:48,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511183133] [2020-10-12 19:41:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:48,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:48,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:48,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:48,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:48,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:48,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:49,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:50,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:50,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:51,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:51,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:51,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:52,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:53,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:53,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:53,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:41:53,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:41:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:41:53,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:41:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:41:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 19:41:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:53,852 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:41:53,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:53,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:53,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:53,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 19:41:53,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:41:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:41:53,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:53,929 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 19:41:53,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511183133] [2020-10-12 19:41:53,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:53,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 19:41:53,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071124098] [2020-10-12 19:41:53,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:41:53,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:53,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:41:53,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:41:53,932 INFO L87 Difference]: Start difference. First operand 3080 states and 4483 transitions. Second operand 10 states. [2020-10-12 19:41:54,472 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2020-10-12 19:42:02,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:02,499 INFO L93 Difference]: Finished difference Result 20356 states and 30790 transitions. [2020-10-12 19:42:02,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 19:42:02,500 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 77 [2020-10-12 19:42:02,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:02,524 INFO L225 Difference]: With dead ends: 20356 [2020-10-12 19:42:02,525 INFO L226 Difference]: Without dead ends: 18396 [2020-10-12 19:42:02,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 19:42:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18396 states. [2020-10-12 19:42:03,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18396 to 6532. [2020-10-12 19:42:03,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6532 states. [2020-10-12 19:42:03,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 9814 transitions. [2020-10-12 19:42:03,515 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 9814 transitions. Word has length 77 [2020-10-12 19:42:03,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:03,516 INFO L479 AbstractCegarLoop]: Abstraction has 6532 states and 9814 transitions. [2020-10-12 19:42:03,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:42:03,516 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 9814 transitions. [2020-10-12 19:42:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:42:03,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:03,519 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] [2020-10-12 19:42:03,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:42:03,520 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:03,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:03,520 INFO L82 PathProgramCache]: Analyzing trace with hash 405353890, now seen corresponding path program 1 times [2020-10-12 19:42:03,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:03,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839053008] [2020-10-12 19:42:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:03,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:03,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:03,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:04,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:04,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:04,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:08,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:08,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:42:08,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:42:08,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:42:08,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 19:42:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:08,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 19:42:08,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:09,165 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:42:09,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:09,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:09,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:09,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:09,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:09,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:42:09,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:09,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:09,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:09,213 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 19:42:09,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839053008] [2020-10-12 19:42:09,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:09,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 19:42:09,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823887418] [2020-10-12 19:42:09,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 19:42:09,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:09,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 19:42:09,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-12 19:42:09,215 INFO L87 Difference]: Start difference. First operand 6532 states and 9814 transitions. Second operand 9 states. [2020-10-12 19:42:09,775 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-12 19:42:14,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:14,507 INFO L93 Difference]: Finished difference Result 17440 states and 26793 transitions. [2020-10-12 19:42:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 19:42:14,507 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-12 19:42:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:14,522 INFO L225 Difference]: With dead ends: 17440 [2020-10-12 19:42:14,523 INFO L226 Difference]: Without dead ends: 12451 [2020-10-12 19:42:14,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:42:14,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12451 states. [2020-10-12 19:42:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12451 to 6358. [2020-10-12 19:42:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6358 states. [2020-10-12 19:42:15,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6358 states to 6358 states and 9562 transitions. [2020-10-12 19:42:15,634 INFO L78 Accepts]: Start accepts. Automaton has 6358 states and 9562 transitions. Word has length 77 [2020-10-12 19:42:15,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:15,634 INFO L479 AbstractCegarLoop]: Abstraction has 6358 states and 9562 transitions. [2020-10-12 19:42:15,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 19:42:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 6358 states and 9562 transitions. [2020-10-12 19:42:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-12 19:42:15,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:15,637 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] [2020-10-12 19:42:15,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 19:42:15,638 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:15,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:15,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1377489988, now seen corresponding path program 1 times [2020-10-12 19:42:15,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:15,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218149632] [2020-10-12 19:42:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:15,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:15,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:15,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:15,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:16,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:16,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:16,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:16,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:17,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:17,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:18,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:20,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:20,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-12 19:42:20,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:42:20,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:42:20,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:20,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:42:20,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:42:20,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 19:42:20,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:21,277 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:42:21,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:21,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:21,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:21,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:21,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:21,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 19:42:21,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:21,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:42:21,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:21,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:42:21,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:21,341 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 19:42:21,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218149632] [2020-10-12 19:42:21,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:21,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:42:21,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423970466] [2020-10-12 19:42:21,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:42:21,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:21,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:42:21,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:42:21,343 INFO L87 Difference]: Start difference. First operand 6358 states and 9562 transitions. Second operand 12 states. [2020-10-12 19:42:21,947 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-12 19:42:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:28,701 INFO L93 Difference]: Finished difference Result 18742 states and 28666 transitions. [2020-10-12 19:42:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 19:42:28,702 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2020-10-12 19:42:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:28,714 INFO L225 Difference]: With dead ends: 18742 [2020-10-12 19:42:28,714 INFO L226 Difference]: Without dead ends: 13061 [2020-10-12 19:42:28,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-10-12 19:42:28,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13061 states. [2020-10-12 19:42:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13061 to 6615. [2020-10-12 19:42:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6615 states. [2020-10-12 19:42:29,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 9931 transitions. [2020-10-12 19:42:29,709 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 9931 transitions. Word has length 77 [2020-10-12 19:42:29,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:29,709 INFO L479 AbstractCegarLoop]: Abstraction has 6615 states and 9931 transitions. [2020-10-12 19:42:29,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:42:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 9931 transitions. [2020-10-12 19:42:29,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:42:29,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:29,711 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] [2020-10-12 19:42:29,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 19:42:29,712 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:29,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:29,712 INFO L82 PathProgramCache]: Analyzing trace with hash -533801342, now seen corresponding path program 1 times [2020-10-12 19:42:29,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:29,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705042625] [2020-10-12 19:42:29,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:29,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:29,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:29,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:29,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:29,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:30,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:32,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:34,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:34,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:34,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:42:34,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 19:42:34,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:42:34,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:42:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-12 19:42:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 19:42:34,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:35,377 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:42:35,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:35,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:35,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:35,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:35,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:35,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:42:35,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:35,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:35,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:35,423 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 19:42:35,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705042625] [2020-10-12 19:42:35,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:35,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:42:35,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497505898] [2020-10-12 19:42:35,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:42:35,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:35,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:42:35,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:42:35,425 INFO L87 Difference]: Start difference. First operand 6615 states and 9931 transitions. Second operand 11 states. [2020-10-12 19:42:36,149 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-12 19:42:44,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:44,179 INFO L93 Difference]: Finished difference Result 17389 states and 26324 transitions. [2020-10-12 19:42:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 19:42:44,179 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-10-12 19:42:44,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:44,195 INFO L225 Difference]: With dead ends: 17389 [2020-10-12 19:42:44,195 INFO L226 Difference]: Without dead ends: 15061 [2020-10-12 19:42:44,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2020-10-12 19:42:44,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15061 states. [2020-10-12 19:42:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15061 to 6615. [2020-10-12 19:42:45,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6615 states. [2020-10-12 19:42:45,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 9929 transitions. [2020-10-12 19:42:45,300 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 9929 transitions. Word has length 78 [2020-10-12 19:42:45,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:45,300 INFO L479 AbstractCegarLoop]: Abstraction has 6615 states and 9929 transitions. [2020-10-12 19:42:45,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:42:45,300 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 9929 transitions. [2020-10-12 19:42:45,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:42:45,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:45,303 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] [2020-10-12 19:42:45,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 19:42:45,303 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:45,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:45,303 INFO L82 PathProgramCache]: Analyzing trace with hash -261089098, now seen corresponding path program 1 times [2020-10-12 19:42:45,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:45,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898695191] [2020-10-12 19:42:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:45,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:45,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:45,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:45,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:45,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:45,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:46,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:48,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:48,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:48,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:49,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:49,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:50,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:50,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:50,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:42:50,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:42:50,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 19:42:50,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:42:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 19:42:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:51,239 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:42:51,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:51,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:51,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:51,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:51,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:51,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:42:51,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:51,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:51,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:51,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:51,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:51,302 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 19:42:51,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898695191] [2020-10-12 19:42:51,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:51,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:42:51,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563318246] [2020-10-12 19:42:51,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:42:51,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:51,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:42:51,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:42:51,304 INFO L87 Difference]: Start difference. First operand 6615 states and 9929 transitions. Second operand 13 states. [2020-10-12 19:42:51,902 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-12 19:42:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:57,304 INFO L93 Difference]: Finished difference Result 10168 states and 15338 transitions. [2020-10-12 19:42:57,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:42:57,305 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 78 [2020-10-12 19:42:57,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:57,314 INFO L225 Difference]: With dead ends: 10168 [2020-10-12 19:42:57,314 INFO L226 Difference]: Without dead ends: 7963 [2020-10-12 19:42:57,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:42:57,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7963 states. [2020-10-12 19:42:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7963 to 6593. [2020-10-12 19:42:58,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6593 states. [2020-10-12 19:42:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6593 states to 6593 states and 9894 transitions. [2020-10-12 19:42:58,550 INFO L78 Accepts]: Start accepts. Automaton has 6593 states and 9894 transitions. Word has length 78 [2020-10-12 19:42:58,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:58,550 INFO L479 AbstractCegarLoop]: Abstraction has 6593 states and 9894 transitions. [2020-10-12 19:42:58,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:42:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 6593 states and 9894 transitions. [2020-10-12 19:42:58,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:42:58,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:58,552 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] [2020-10-12 19:42:58,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 19:42:58,553 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:58,553 INFO L82 PathProgramCache]: Analyzing trace with hash 440044003, now seen corresponding path program 1 times [2020-10-12 19:42:58,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:58,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511740466] [2020-10-12 19:42:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:58,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:58,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:58,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:59,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:59,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:59,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:59,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:59,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:59,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:59,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:01,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:01,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:01,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:02,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:02,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:03,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:03,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:43:03,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-12 19:43:03,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:43:03,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:03,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:43:03,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:43:03,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 19:43:03,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:04,600 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:43:04,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:04,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:04,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:04,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:04,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:04,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:43:04,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:43:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:43:04,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:04,655 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 19:43:04,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511740466] [2020-10-12 19:43:04,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:04,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:43:04,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905290333] [2020-10-12 19:43:04,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:43:04,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:04,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:43:04,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:43:04,657 INFO L87 Difference]: Start difference. First operand 6593 states and 9894 transitions. Second operand 14 states. [2020-10-12 19:43:06,043 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 344 DAG size of output: 334 [2020-10-12 19:43:06,810 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2020-10-12 19:43:10,319 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-10-12 19:43:13,463 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2020-10-12 19:43:13,856 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-10-12 19:43:14,506 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-10-12 19:43:20,747 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2020-10-12 19:43:22,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:43:22,613 INFO L93 Difference]: Finished difference Result 37239 states and 56764 transitions. [2020-10-12 19:43:22,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-12 19:43:22,614 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 78 [2020-10-12 19:43:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:43:22,649 INFO L225 Difference]: With dead ends: 37239 [2020-10-12 19:43:22,649 INFO L226 Difference]: Without dead ends: 31949 [2020-10-12 19:43:22,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 846 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=516, Invalid=2346, Unknown=0, NotChecked=0, Total=2862 [2020-10-12 19:43:22,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31949 states. [2020-10-12 19:43:24,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31949 to 10571. [2020-10-12 19:43:24,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10571 states. [2020-10-12 19:43:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10571 states to 10571 states and 15889 transitions. [2020-10-12 19:43:24,711 INFO L78 Accepts]: Start accepts. Automaton has 10571 states and 15889 transitions. Word has length 78 [2020-10-12 19:43:24,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:43:24,711 INFO L479 AbstractCegarLoop]: Abstraction has 10571 states and 15889 transitions. [2020-10-12 19:43:24,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:43:24,711 INFO L276 IsEmpty]: Start isEmpty. Operand 10571 states and 15889 transitions. [2020-10-12 19:43:24,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 19:43:24,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:43:24,714 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] [2020-10-12 19:43:24,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 19:43:24,715 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:43:24,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:43:24,715 INFO L82 PathProgramCache]: Analyzing trace with hash 569494748, now seen corresponding path program 1 times [2020-10-12 19:43:24,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:43:24,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007356417] [2020-10-12 19:43:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:43:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:24,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:24,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:24,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:25,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:25,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:25,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:25,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:25,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:26,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:27,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:29,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:29,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 19:43:29,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:43:29,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:43:29,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:29,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:43:29,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:43:29,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 19:43:29,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:30,395 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2020-10-12 19:43:30,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:30,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:30,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:30,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:30,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:43:30,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:43:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:30,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:43:30,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:30,446 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 19:43:30,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007356417] [2020-10-12 19:43:30,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:30,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:43:30,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058734815] [2020-10-12 19:43:30,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:43:30,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:30,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:43:30,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:43:30,448 INFO L87 Difference]: Start difference. First operand 10571 states and 15889 transitions. Second operand 12 states. [2020-10-12 19:43:31,034 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 310