/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:23:21,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:23:21,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:23:21,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:23:21,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:23:21,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:23:21,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:23:21,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:23:21,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:23:21,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:23:21,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:23:21,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:23:21,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:23:21,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:23:21,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:23:21,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:23:21,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:23:21,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:23:21,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:23:21,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:23:21,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:23:21,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:23:21,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:23:21,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:23:21,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:23:21,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:23:21,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:23:21,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:23:21,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:23:21,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:23:21,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:23:21,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:23:21,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:23:21,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:23:21,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:23:21,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:23:21,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:23:21,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:23:21,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:23:21,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:23:21,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:23:21,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 13:23:21,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:23:21,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:23:21,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:23:21,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:23:21,991 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:23:21,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:23:21,992 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:23:21,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:23:21,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:23:21,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:23:21,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:23:21,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:23:21,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:23:21,993 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:23:21,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:23:21,993 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:23:21,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:23:21,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:23:21,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:23:21,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:23:21,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:23:21,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:23:21,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:23:21,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:23:21,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:23:21,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:23:21,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:23:21,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:23:21,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:23:21,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:23:22,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:23:22,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:23:22,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:23:22,332 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:23:22,334 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:23:22,335 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:23:22,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3773593a7/4481f610c9c44bf28f827df4cc2b1a37/FLAG7ba403d6f [2020-10-13 13:23:22,912 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:23:22,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:23:22,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3773593a7/4481f610c9c44bf28f827df4cc2b1a37/FLAG7ba403d6f [2020-10-13 13:23:23,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3773593a7/4481f610c9c44bf28f827df4cc2b1a37 [2020-10-13 13:23:23,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:23:23,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:23:23,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:23:23,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:23:23,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:23:23,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23, skipping insertion in model container [2020-10-13 13:23:23,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:23:23,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:23:23,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:23:23,643 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:23:23,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:23:23,835 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:23:23,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23 WrapperNode [2020-10-13 13:23:23,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:23:23,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:23:23,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:23:23,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:23:23,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (1/1) ... [2020-10-13 13:23:23,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:23:23,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:23:23,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:23:23,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:23:23,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:23:23,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:23:23,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:23:23,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:23:23,953 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:23:23,953 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:23:23,954 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:23:23,955 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:23:23,955 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:23:23,956 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:23:23,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:23:23,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:23:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:23:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:23:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:23:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:23:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:23:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:23:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:23:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:23:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:23:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:23:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:23:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:23:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:23:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:23:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:23:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:23:23,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:23:23,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:23:24,612 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:23:24,613 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:23:24,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:24 BoogieIcfgContainer [2020-10-13 13:23:24,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:23:24,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:23:24,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:23:24,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:23:24,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:23:23" (1/3) ... [2020-10-13 13:23:24,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478a797a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:23:24, skipping insertion in model container [2020-10-13 13:23:24,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:23:23" (2/3) ... [2020-10-13 13:23:24,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478a797a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:23:24, skipping insertion in model container [2020-10-13 13:23:24,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:23:24" (3/3) ... [2020-10-13 13:23:24,635 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c [2020-10-13 13:23:24,646 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:23:24,660 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:23:24,674 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:23:24,701 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:23:24,701 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:23:24,701 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:23:24,702 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:23:24,702 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:23:24,702 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:23:24,702 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:23:24,702 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:23:24,721 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2020-10-13 13:23:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-13 13:23:24,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:24,732 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] [2020-10-13 13:23:24,733 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:24,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1311688707, now seen corresponding path program 1 times [2020-10-13 13:23:24,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:24,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728024477] [2020-10-13 13:23:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 13:23:25,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-13 13:23:25,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:23:25,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:23:25,510 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 13:23:25,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:23:25,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:25,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:23:25,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:25,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:23:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:25,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:25,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:23:25,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:25,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:23:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:25,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:23:25,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:23:25,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:23:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:25,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:23:25,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:25,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:23:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:25,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:23:25,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:25,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:25,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:23:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:25,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:23:25,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:25,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:25,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:23:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:25,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:25,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:25,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:25,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:23:25,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:23:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:25,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:25,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728024477] [2020-10-13 13:23:25,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:25,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:23:25,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643139795] [2020-10-13 13:23:25,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:23:25,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:25,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:23:25,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:23:25,784 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 7 states. [2020-10-13 13:23:26,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:26,535 INFO L93 Difference]: Finished difference Result 182 states and 264 transitions. [2020-10-13 13:23:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:23:26,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-10-13 13:23:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:26,550 INFO L225 Difference]: With dead ends: 182 [2020-10-13 13:23:26,551 INFO L226 Difference]: Without dead ends: 108 [2020-10-13 13:23:26,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:23:26,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-13 13:23:26,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2020-10-13 13:23:26,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-13 13:23:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-10-13 13:23:26,614 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 60 [2020-10-13 13:23:26,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:26,615 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-10-13 13:23:26,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:23:26,615 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2020-10-13 13:23:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-13 13:23:26,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:26,618 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] [2020-10-13 13:23:26,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:23:26,619 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:26,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:26,619 INFO L82 PathProgramCache]: Analyzing trace with hash -418202369, now seen corresponding path program 1 times [2020-10-13 13:23:26,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:26,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957873355] [2020-10-13 13:23:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:26,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 13:23:27,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-10-13 13:23:27,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:23:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:23:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:23:27,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:27,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:27,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:23:27,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:27,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:27,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:27,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:27,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:27,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:23:27,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:27,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:27,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:23:27,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:23:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:27,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:27,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:23:27,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:23:27,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:23:27,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:23:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:27,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:27,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:23:27,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:27,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:23:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:27,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:27,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:23:27,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:27,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:27,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:27,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:23:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:27,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:27,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:23:27,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:27,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:27,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:27,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:23:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:27,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:27,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:23:27,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:27,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:23:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:27,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:27,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:27,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:27,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:27,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:27,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:23:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:27,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:27,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957873355] [2020-10-13 13:23:27,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:27,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:23:27,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506500743] [2020-10-13 13:23:27,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:23:27,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:27,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:23:27,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:23:27,714 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 13 states. [2020-10-13 13:23:28,176 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:23:28,314 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 13:23:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:29,322 INFO L93 Difference]: Finished difference Result 180 states and 256 transitions. [2020-10-13 13:23:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:23:29,323 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-10-13 13:23:29,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:29,325 INFO L225 Difference]: With dead ends: 180 [2020-10-13 13:23:29,326 INFO L226 Difference]: Without dead ends: 108 [2020-10-13 13:23:29,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:23:29,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-13 13:23:29,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2020-10-13 13:23:29,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-13 13:23:29,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2020-10-13 13:23:29,346 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 60 [2020-10-13 13:23:29,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:29,347 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2020-10-13 13:23:29,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:23:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2020-10-13 13:23:29,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 13:23:29,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:29,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:23:29,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:23:29,355 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:29,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:29,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1183078652, now seen corresponding path program 1 times [2020-10-13 13:23:29,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:29,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086441813] [2020-10-13 13:23:29,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:29,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:29,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 13:23:31,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:23:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1723 [2020-10-13 13:23:31,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 13:23:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 13:23:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:23:31,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:31,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:31,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:31,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:23:31,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:31,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:31,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:31,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:23:31,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:31,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:23:31,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:31,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 13:23:31,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:31,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:23:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:31,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:31,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:31,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:31,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:23:31,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:31,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:23:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:31,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:31,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:31,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:23:31,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:31,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:31,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:23:31,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:31,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:23:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:31,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:31,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:31,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:23:31,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:23:31,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:31,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:23:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:31,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:31,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:31,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:23:31,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:23:31,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:31,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:23:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:31,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:31,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:31,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:23:31,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:31,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:31,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:31,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:23:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:31,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:31,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:31,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:31,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:31,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:31,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:23:31,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:31,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:31,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:31,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086441813] [2020-10-13 13:23:31,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:31,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:23:31,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847316746] [2020-10-13 13:23:31,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:23:31,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:31,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:23:31,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:23:31,511 INFO L87 Difference]: Start difference. First operand 107 states and 133 transitions. Second operand 10 states. [2020-10-13 13:23:31,657 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 13:23:32,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:32,910 INFO L93 Difference]: Finished difference Result 235 states and 311 transitions. [2020-10-13 13:23:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:23:32,916 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-13 13:23:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:32,927 INFO L225 Difference]: With dead ends: 235 [2020-10-13 13:23:32,927 INFO L226 Difference]: Without dead ends: 169 [2020-10-13 13:23:32,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:23:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-13 13:23:32,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2020-10-13 13:23:32,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-13 13:23:32,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 214 transitions. [2020-10-13 13:23:32,965 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 214 transitions. Word has length 82 [2020-10-13 13:23:32,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:32,966 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 214 transitions. [2020-10-13 13:23:32,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:23:32,966 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 214 transitions. [2020-10-13 13:23:32,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 13:23:32,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:32,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:23:32,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:23:32,971 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:32,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:32,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1517603962, now seen corresponding path program 1 times [2020-10-13 13:23:32,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:32,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816582357] [2020-10-13 13:23:32,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:33,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:33,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:33,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 13:23:33,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:33,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-10-13 13:23:33,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:33,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:23:33,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:23:33,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:23:33,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:33,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:33,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:33,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:33,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:33,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:33,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:23:33,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:33,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:33,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:23:33,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:33,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:33,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:33,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:23:33,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:33,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 13:23:33,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:33,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:23:33,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:33,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 13:23:33,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:33,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:23:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:33,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:33,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:33,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:33,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:33,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:33,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:23:33,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:33,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:23:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:33,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:33,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:33,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:33,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:33,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:23:33,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:33,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:34,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:23:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:34,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:34,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:34,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:34,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:34,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:23:34,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:34,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:34,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:34,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:23:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:34,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:34,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:34,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:34,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:34,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:23:34,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:34,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:34,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:23:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:34,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:34,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:34,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:34,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:34,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 13:23:34,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:34,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:34,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:34,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:23:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:34,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:34,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:34,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:34,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:34,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:23:34,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:23:34,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:23:34,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:34,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816582357] [2020-10-13 13:23:34,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:34,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:23:34,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090071171] [2020-10-13 13:23:34,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:23:34,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:34,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:23:34,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:23:34,262 INFO L87 Difference]: Start difference. First operand 165 states and 214 transitions. Second operand 16 states. [2020-10-13 13:23:41,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:41,108 INFO L93 Difference]: Finished difference Result 1579 states and 2226 transitions. [2020-10-13 13:23:41,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-13 13:23:41,109 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-13 13:23:41,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:41,120 INFO L225 Difference]: With dead ends: 1579 [2020-10-13 13:23:41,121 INFO L226 Difference]: Without dead ends: 1455 [2020-10-13 13:23:41,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2595 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1432, Invalid=6224, Unknown=0, NotChecked=0, Total=7656 [2020-10-13 13:23:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2020-10-13 13:23:41,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1052. [2020-10-13 13:23:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-13 13:23:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1460 transitions. [2020-10-13 13:23:41,251 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1460 transitions. Word has length 82 [2020-10-13 13:23:41,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:41,252 INFO L479 AbstractCegarLoop]: Abstraction has 1052 states and 1460 transitions. [2020-10-13 13:23:41,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:23:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1460 transitions. [2020-10-13 13:23:41,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 13:23:41,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:41,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:23:41,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:23:41,256 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:41,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:41,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1375228694, now seen corresponding path program 1 times [2020-10-13 13:23:41,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:41,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908029811] [2020-10-13 13:23:41,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:41,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:41,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:41,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:41,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:41,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 13:23:41,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:23:41,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-10-13 13:23:41,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:41,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:41,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:23:41,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:23:41,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:41,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:41,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:41,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:41,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:41,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:23:41,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:41,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:41,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:41,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:41,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:41,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:41,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:41,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:41,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:23:41,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:41,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:23:41,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:41,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:41,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:41,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:23:42,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:23:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:42,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:42,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:42,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:42,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:42,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:23:42,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:42,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:42,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:42,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:42,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:42,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:23:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:42,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:42,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:42,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:42,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:42,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:23:42,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:42,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:42,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:23:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:42,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:42,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:42,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:42,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:42,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:42,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:42,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:42,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:23:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:42,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:42,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:42,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:42,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:42,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:23:42,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:42,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:42,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:42,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:23:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:42,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:42,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:42,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:42,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:42,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:23:42,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:42,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:42,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:42,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:42,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:42,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:23:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:42,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:42,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:42,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:23:42,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:42,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:23:42,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:23:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:23:42,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:42,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908029811] [2020-10-13 13:23:42,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:42,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:23:42,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606006073] [2020-10-13 13:23:42,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:23:42,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:42,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:23:42,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:23:42,134 INFO L87 Difference]: Start difference. First operand 1052 states and 1460 transitions. Second operand 8 states. [2020-10-13 13:23:43,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:43,206 INFO L93 Difference]: Finished difference Result 2990 states and 4200 transitions. [2020-10-13 13:23:43,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:23:43,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-13 13:23:43,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:43,219 INFO L225 Difference]: With dead ends: 2990 [2020-10-13 13:23:43,219 INFO L226 Difference]: Without dead ends: 1979 [2020-10-13 13:23:43,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:23:43,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2020-10-13 13:23:43,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1929. [2020-10-13 13:23:43,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2020-10-13 13:23:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2672 transitions. [2020-10-13 13:23:43,378 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2672 transitions. Word has length 84 [2020-10-13 13:23:43,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:43,379 INFO L479 AbstractCegarLoop]: Abstraction has 1929 states and 2672 transitions. [2020-10-13 13:23:43,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:23:43,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2672 transitions. [2020-10-13 13:23:43,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 13:23:43,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:43,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:23:43,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:23:43,382 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:43,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:43,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1632036146, now seen corresponding path program 1 times [2020-10-13 13:23:43,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:43,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423724526] [2020-10-13 13:23:43,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:43,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 13:23:44,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-13 13:23:44,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:23:44,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:23:44,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:23:44,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:23:44,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:44,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:44,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:23:44,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:44,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:44,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:44,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:23:44,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:23:44,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:23:44,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:44,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 13:23:44,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:44,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:23:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:44,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:44,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:44,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:23:44,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:44,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:23:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:44,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:44,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:23:44,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:44,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:44,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:44,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:44,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:23:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:44,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:44,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:23:44,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:44,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:44,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:44,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:44,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:23:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:44,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:44,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:23:44,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:44,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:44,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:44,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:23:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:44,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:23:44,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:44,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:23:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:44,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:44,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:44,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:23:44,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:44,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:23:44,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:23:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:23:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:44,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:44,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423724526] [2020-10-13 13:23:44,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:44,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-13 13:23:44,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799856821] [2020-10-13 13:23:44,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:23:44,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:44,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:23:44,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:23:44,579 INFO L87 Difference]: Start difference. First operand 1929 states and 2672 transitions. Second operand 16 states. [2020-10-13 13:23:50,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:50,823 INFO L93 Difference]: Finished difference Result 5917 states and 8437 transitions. [2020-10-13 13:23:50,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-13 13:23:50,824 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2020-10-13 13:23:50,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:50,850 INFO L225 Difference]: With dead ends: 5917 [2020-10-13 13:23:50,850 INFO L226 Difference]: Without dead ends: 4029 [2020-10-13 13:23:50,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1706 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1111, Invalid=4145, Unknown=0, NotChecked=0, Total=5256 [2020-10-13 13:23:50,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2020-10-13 13:23:51,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3705. [2020-10-13 13:23:51,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3705 states. [2020-10-13 13:23:51,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3705 states to 3705 states and 5212 transitions. [2020-10-13 13:23:51,140 INFO L78 Accepts]: Start accepts. Automaton has 3705 states and 5212 transitions. Word has length 84 [2020-10-13 13:23:51,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:51,141 INFO L479 AbstractCegarLoop]: Abstraction has 3705 states and 5212 transitions. [2020-10-13 13:23:51,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:23:51,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3705 states and 5212 transitions. [2020-10-13 13:23:51,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 13:23:51,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:51,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:23:51,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:23:51,144 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:51,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:51,144 INFO L82 PathProgramCache]: Analyzing trace with hash -208666490, now seen corresponding path program 1 times [2020-10-13 13:23:51,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:51,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522462049] [2020-10-13 13:23:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:51,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:51,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:51,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:51,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:54,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:54,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 13:23:54,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:23:54,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3745 [2020-10-13 13:23:54,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:54,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:23:54,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 13:23:54,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 13:23:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:55,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:55,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:55,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:55,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:55,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:23:55,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:55,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:55,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:55,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:55,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:55,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:23:55,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:55,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:23:55,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:55,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:23:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:55,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:55,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:55,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:55,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:55,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:23:55,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:55,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:23:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:55,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:55,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:55,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:55,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:55,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:23:55,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:23:55,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:23:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:55,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:55,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:55,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:55,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:55,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:23:55,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:55,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:23:55,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:23:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:55,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:55,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:55,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:23:55,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:55,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:23:55,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:55,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:23:55,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:55,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:23:55,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 13:23:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:55,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:55,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:55,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:23:55,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:55,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:23:55,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:55,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:55,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:23:55,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:55,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:23:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:55,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:55,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:55,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:55,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:55,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:23:55,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:23:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:55,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:55,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522462049] [2020-10-13 13:23:55,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:55,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:23:55,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993791528] [2020-10-13 13:23:55,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:23:55,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:55,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:23:55,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:23:55,197 INFO L87 Difference]: Start difference. First operand 3705 states and 5212 transitions. Second operand 11 states. [2020-10-13 13:23:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:56,666 INFO L93 Difference]: Finished difference Result 8395 states and 11665 transitions. [2020-10-13 13:23:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:23:56,669 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2020-10-13 13:23:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:56,693 INFO L225 Difference]: With dead ends: 8395 [2020-10-13 13:23:56,694 INFO L226 Difference]: Without dead ends: 4731 [2020-10-13 13:23:56,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:23:56,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4731 states. [2020-10-13 13:23:57,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4731 to 3786. [2020-10-13 13:23:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3786 states. [2020-10-13 13:23:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 5321 transitions. [2020-10-13 13:23:57,052 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 5321 transitions. Word has length 84 [2020-10-13 13:23:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:57,053 INFO L479 AbstractCegarLoop]: Abstraction has 3786 states and 5321 transitions. [2020-10-13 13:23:57,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:23:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 5321 transitions. [2020-10-13 13:23:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 13:23:57,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:57,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:23:57,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:23:57,055 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:57,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:57,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1138289330, now seen corresponding path program 1 times [2020-10-13 13:23:57,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:57,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916372531] [2020-10-13 13:23:57,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:57,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:57,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:57,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:57,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 13:24:01,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:24:01,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4063 [2020-10-13 13:24:01,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:24:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 13:24:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 13:24:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:01,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:01,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:01,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:24:01,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:01,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:01,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:01,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:01,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:01,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:01,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:01,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:01,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:01,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:01,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:01,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:01,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:01,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:01,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:01,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:01,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:01,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:01,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:24:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:01,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:01,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:01,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:24:01,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:24:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:24:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:24:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:01,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:01,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:01,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:01,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:01,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:01,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 13:24:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:01,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:01,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:01,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:01,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:01,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:01,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:01,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:24:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:01,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:01,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:01,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:01,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:01,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:01,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916372531] [2020-10-13 13:24:01,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:01,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:24:01,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276358378] [2020-10-13 13:24:01,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:24:01,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:01,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:24:01,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:24:01,463 INFO L87 Difference]: Start difference. First operand 3786 states and 5321 transitions. Second operand 11 states. [2020-10-13 13:24:02,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:02,993 INFO L93 Difference]: Finished difference Result 9197 states and 12829 transitions. [2020-10-13 13:24:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:24:02,993 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2020-10-13 13:24:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:03,025 INFO L225 Difference]: With dead ends: 9197 [2020-10-13 13:24:03,025 INFO L226 Difference]: Without dead ends: 5481 [2020-10-13 13:24:03,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:24:03,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2020-10-13 13:24:03,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 3816. [2020-10-13 13:24:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3816 states. [2020-10-13 13:24:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 5361 transitions. [2020-10-13 13:24:03,390 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 5361 transitions. Word has length 84 [2020-10-13 13:24:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:03,390 INFO L479 AbstractCegarLoop]: Abstraction has 3816 states and 5361 transitions. [2020-10-13 13:24:03,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:24:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 5361 transitions. [2020-10-13 13:24:03,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 13:24:03,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:03,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:03,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:24:03,392 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:03,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:03,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1532219338, now seen corresponding path program 1 times [2020-10-13 13:24:03,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:03,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978889631] [2020-10-13 13:24:03,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:03,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:03,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:03,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:03,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 13:24:03,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:24:03,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-13 13:24:03,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:03,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:24:03,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:24:03,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:03,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:03,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:03,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:03,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:03,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:03,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:24:03,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:03,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:03,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:03,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:03,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:03,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:03,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:03,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:03,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:03,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:24:03,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 13:24:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:03,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:03,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:03,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:03,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:03,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:03,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:03,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:03,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:03,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:03,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:03,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:03,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:03,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:03,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:03,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:03,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:03,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:24:03,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:03,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:03,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:03,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:03,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:03,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:24:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:03,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:03,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:03,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:03,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:03,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:03,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:03,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:03,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:24:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:03,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:03,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:03,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:03,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:03,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:03,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:03,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:04,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:24:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:04,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:04,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:04,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:04,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:04,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:04,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:04,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:24:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:04,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:04,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:04,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:04,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:04,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:24:04,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:24:04,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:24:04,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:04,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:04,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978889631] [2020-10-13 13:24:04,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:04,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:24:04,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567098882] [2020-10-13 13:24:04,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:04,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:04,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:04,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:04,074 INFO L87 Difference]: Start difference. First operand 3816 states and 5361 transitions. Second operand 10 states. [2020-10-13 13:24:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:06,072 INFO L93 Difference]: Finished difference Result 9095 states and 12840 transitions. [2020-10-13 13:24:06,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:24:06,073 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-10-13 13:24:06,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:06,108 INFO L225 Difference]: With dead ends: 9095 [2020-10-13 13:24:06,109 INFO L226 Difference]: Without dead ends: 5327 [2020-10-13 13:24:06,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:24:06,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2020-10-13 13:24:06,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 5213. [2020-10-13 13:24:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5213 states. [2020-10-13 13:24:06,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 7269 transitions. [2020-10-13 13:24:06,559 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 7269 transitions. Word has length 85 [2020-10-13 13:24:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:06,559 INFO L479 AbstractCegarLoop]: Abstraction has 5213 states and 7269 transitions. [2020-10-13 13:24:06,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 7269 transitions. [2020-10-13 13:24:06,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 13:24:06,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:06,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:06,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:24:06,561 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:06,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1115322997, now seen corresponding path program 1 times [2020-10-13 13:24:06,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:06,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015039491] [2020-10-13 13:24:06,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:06,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:06,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:06,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 13:24:06,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:06,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-13 13:24:06,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:24:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 13:24:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:24:06,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:07,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:07,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:07,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:07,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:07,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:24:07,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:07,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:07,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:07,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:07,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:07,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:07,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:07,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:07,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:07,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:07,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:07,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:07,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:07,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:07,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:07,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:07,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:07,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:07,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:07,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:07,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:07,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:07,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:07,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:07,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:07,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:07,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:07,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:07,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:24:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:07,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:07,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:07,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:07,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:07,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:07,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:07,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:07,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:07,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:07,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:07,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:24:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:07,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:07,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:07,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:07,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:07,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:07,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:07,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:07,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:24:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:07,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:07,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:07,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:07,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:07,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:07,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:07,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:07,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:24:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:07,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:07,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:07,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:07,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:07,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:24:07,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:24:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:07,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:07,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015039491] [2020-10-13 13:24:07,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:07,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:24:07,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986328852] [2020-10-13 13:24:07,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:24:07,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:07,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:24:07,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:24:07,203 INFO L87 Difference]: Start difference. First operand 5213 states and 7269 transitions. Second operand 13 states. [2020-10-13 13:24:07,620 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-13 13:24:08,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:08,869 INFO L93 Difference]: Finished difference Result 5610 states and 8064 transitions. [2020-10-13 13:24:08,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:24:08,869 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-13 13:24:08,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:08,900 INFO L225 Difference]: With dead ends: 5610 [2020-10-13 13:24:08,901 INFO L226 Difference]: Without dead ends: 5608 [2020-10-13 13:24:08,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:24:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5608 states. [2020-10-13 13:24:09,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5608 to 5285. [2020-10-13 13:24:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5285 states. [2020-10-13 13:24:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 7335 transitions. [2020-10-13 13:24:09,233 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 7335 transitions. Word has length 85 [2020-10-13 13:24:09,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:09,233 INFO L479 AbstractCegarLoop]: Abstraction has 5285 states and 7335 transitions. [2020-10-13 13:24:09,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:24:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 7335 transitions. [2020-10-13 13:24:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 13:24:09,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:09,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:09,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:24:09,235 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:09,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:09,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1095153653, now seen corresponding path program 1 times [2020-10-13 13:24:09,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:09,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640728431] [2020-10-13 13:24:09,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:09,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:09,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:09,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:09,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:12,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:12,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 13:24:12,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:24:12,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3714 [2020-10-13 13:24:12,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:12,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:24:12,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 13:24:12,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:24:12,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:13,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:13,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:13,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:13,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:13,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:13,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:13,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:13,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:13,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:13,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:13,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:13,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:13,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:13,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:13,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:13,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:13,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:13,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:13,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:13,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:13,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:13,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:13,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:13,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:13,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:13,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:13,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:13,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:13,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:13,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:13,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:13,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 13:24:13,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:13,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:24:13,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:24:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:13,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:24:13,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:13,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 13:24:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:13,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:13,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:13,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:13,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:13,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:13,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:13,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:13,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:13,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 13:24:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:13,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:13,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:13,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:13,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:13,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:13,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:13,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:13,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 13:24:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:13,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:13,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:13,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:13,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:13,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:13,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:13,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:13,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:13,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:13,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:13,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:24:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:13,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:13,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:13,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:13,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:13,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:13,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:24:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:13,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640728431] [2020-10-13 13:24:13,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:13,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:24:13,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810018972] [2020-10-13 13:24:13,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:24:13,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:13,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:24:13,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:24:13,318 INFO L87 Difference]: Start difference. First operand 5285 states and 7335 transitions. Second operand 11 states. [2020-10-13 13:24:13,674 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 13:24:13,803 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 13:24:15,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:15,017 INFO L93 Difference]: Finished difference Result 10348 states and 14444 transitions. [2020-10-13 13:24:15,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:24:15,017 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 86 [2020-10-13 13:24:15,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:15,043 INFO L225 Difference]: With dead ends: 10348 [2020-10-13 13:24:15,043 INFO L226 Difference]: Without dead ends: 6454 [2020-10-13 13:24:15,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:24:15,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2020-10-13 13:24:15,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 5595. [2020-10-13 13:24:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5595 states. [2020-10-13 13:24:15,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 7806 transitions. [2020-10-13 13:24:15,472 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 7806 transitions. Word has length 86 [2020-10-13 13:24:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:15,473 INFO L479 AbstractCegarLoop]: Abstraction has 5595 states and 7806 transitions. [2020-10-13 13:24:15,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:24:15,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 7806 transitions. [2020-10-13 13:24:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-13 13:24:15,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:15,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:15,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:24:15,475 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:15,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:15,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1565885297, now seen corresponding path program 1 times [2020-10-13 13:24:15,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:15,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915777681] [2020-10-13 13:24:15,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:15,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:15,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:15,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 13:24:16,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:24:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-10-13 13:24:16,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:16,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:24:16,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:24:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:16,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:16,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:16,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:24:16,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:16,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:16,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:16,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:16,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:16,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:16,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:24:16,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:16,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:24:16,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:16,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:16,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:16,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:16,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:16,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:16,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:16,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:24:16,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:24:16,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:24:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:16,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:16,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:16,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:16,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:16,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:16,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:24:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:16,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:16,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:16,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:16,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:16,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:16,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:16,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 13:24:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:16,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:16,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:16,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:16,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:16,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:16,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:16,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:24:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:16,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:16,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:16,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:16,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:16,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:16,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:24:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:24:16,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915777681] [2020-10-13 13:24:16,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:24:16,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:24:16,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587831011] [2020-10-13 13:24:16,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:16,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:16,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:16,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:16,690 INFO L87 Difference]: Start difference. First operand 5595 states and 7806 transitions. Second operand 10 states. [2020-10-13 13:24:18,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:18,413 INFO L93 Difference]: Finished difference Result 11374 states and 15896 transitions. [2020-10-13 13:24:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:24:18,414 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-10-13 13:24:18,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:18,445 INFO L225 Difference]: With dead ends: 11374 [2020-10-13 13:24:18,445 INFO L226 Difference]: Without dead ends: 7158 [2020-10-13 13:24:18,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:24:18,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7158 states. [2020-10-13 13:24:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7158 to 7105. [2020-10-13 13:24:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7105 states. [2020-10-13 13:24:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7105 states to 7105 states and 9758 transitions. [2020-10-13 13:24:18,956 INFO L78 Accepts]: Start accepts. Automaton has 7105 states and 9758 transitions. Word has length 87 [2020-10-13 13:24:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:18,957 INFO L479 AbstractCegarLoop]: Abstraction has 7105 states and 9758 transitions. [2020-10-13 13:24:18,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 7105 states and 9758 transitions. [2020-10-13 13:24:18,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 13:24:18,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:18,961 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:18,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:24:18,961 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:18,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:18,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1242608942, now seen corresponding path program 1 times [2020-10-13 13:24:18,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:18,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683287835] [2020-10-13 13:24:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:18,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:19,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:19,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:19,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:23,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:23,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 13:24:23,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:24:23,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:24:23,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:23,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 13:24:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 13:24:23,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:24,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:24,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:24,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:24,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:24,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:24,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:24,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:24,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:24,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:24:24,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:24,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:24,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:24,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:24,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:24:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:24,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:24,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:24:24,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:24:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:24,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:24,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:24,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:24,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:24:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:24,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:24,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:24:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:24,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:24,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:24,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:24:24,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:24:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:24,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:24,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:24,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:24:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:24,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:24,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:24:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:24,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:24:24,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:24,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:24:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:24,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:24,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:24,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:24,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:24,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:24:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:24,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:24,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:24:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:24:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:24,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:24,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:24,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:24,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:24,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-13 13:24:24,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683287835] [2020-10-13 13:24:24,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:24:24,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:24:24,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783504003] [2020-10-13 13:24:24,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:24,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:24,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:24,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:24,311 INFO L87 Difference]: Start difference. First operand 7105 states and 9758 transitions. Second operand 10 states. [2020-10-13 13:24:26,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:26,503 INFO L93 Difference]: Finished difference Result 20917 states and 28987 transitions. [2020-10-13 13:24:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:24:26,504 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-10-13 13:24:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:26,558 INFO L225 Difference]: With dead ends: 20917 [2020-10-13 13:24:26,559 INFO L226 Difference]: Without dead ends: 13886 [2020-10-13 13:24:26,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:24:26,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13886 states. [2020-10-13 13:24:27,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13886 to 13334. [2020-10-13 13:24:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13334 states. [2020-10-13 13:24:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13334 states to 13334 states and 18188 transitions. [2020-10-13 13:24:27,738 INFO L78 Accepts]: Start accepts. Automaton has 13334 states and 18188 transitions. Word has length 129 [2020-10-13 13:24:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:27,739 INFO L479 AbstractCegarLoop]: Abstraction has 13334 states and 18188 transitions. [2020-10-13 13:24:27,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 13334 states and 18188 transitions. [2020-10-13 13:24:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 13:24:27,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:27,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:27,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:24:27,743 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:27,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:27,744 INFO L82 PathProgramCache]: Analyzing trace with hash -4899912, now seen corresponding path program 1 times [2020-10-13 13:24:27,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:27,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479517014] [2020-10-13 13:24:27,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:27,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:27,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:27,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:29,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:32,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:32,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 13:24:32,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:24:32,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 13:24:32,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:32,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:32,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-13 13:24:32,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 13:24:32,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:32,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:32,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:32,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:32,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:32,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:24:32,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:32,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:32,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:32,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:32,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:32,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:24:32,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:32,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:32,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:32,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:32,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:32,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:32,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:32,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:32,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:32,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:32,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:32,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:32,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:32,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:24:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:32,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:24:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:32,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:32,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:32,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:32,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:32,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:32,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:32,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:32,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:24:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:32,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:33,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:33,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:33,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:33,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:24:33,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:24:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:33,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:33,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:24:33,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:33,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:24:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:33,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:33,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:33,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:33,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:33,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:24:33,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:24:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:33,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:33,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:33,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:24:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:33,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:33,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:33,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:24:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:33,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:33,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:33,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:24:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:33,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:33,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:24:33,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:33,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-13 13:24:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:33,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:33,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:33,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:24:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:24:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:33,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:33,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:33,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:33,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:33,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:33,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:33,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:33,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:33,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:33,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-13 13:24:33,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479517014] [2020-10-13 13:24:33,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:24:33,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:24:33,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310089286] [2020-10-13 13:24:33,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:33,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:33,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:33,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:33,168 INFO L87 Difference]: Start difference. First operand 13334 states and 18188 transitions. Second operand 10 states. [2020-10-13 13:24:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:35,547 INFO L93 Difference]: Finished difference Result 39248 states and 54002 transitions. [2020-10-13 13:24:35,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:24:35,547 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-10-13 13:24:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:35,641 INFO L225 Difference]: With dead ends: 39248 [2020-10-13 13:24:35,641 INFO L226 Difference]: Without dead ends: 26006 [2020-10-13 13:24:35,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:24:35,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26006 states. [2020-10-13 13:24:37,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26006 to 24888. [2020-10-13 13:24:37,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24888 states. [2020-10-13 13:24:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24888 states to 24888 states and 33638 transitions. [2020-10-13 13:24:37,382 INFO L78 Accepts]: Start accepts. Automaton has 24888 states and 33638 transitions. Word has length 129 [2020-10-13 13:24:37,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:37,383 INFO L479 AbstractCegarLoop]: Abstraction has 24888 states and 33638 transitions. [2020-10-13 13:24:37,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:37,383 INFO L276 IsEmpty]: Start isEmpty. Operand 24888 states and 33638 transitions. [2020-10-13 13:24:37,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 13:24:37,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:37,390 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:37,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:24:37,390 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:37,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:37,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2027380570, now seen corresponding path program 1 times [2020-10-13 13:24:37,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:37,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835935694] [2020-10-13 13:24:37,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:37,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:37,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:37,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:37,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:38,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-13 13:24:42,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:24:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:24:42,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 13:24:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 13:24:42,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:42,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:42,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:42,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:42,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:42,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:42,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:42,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:42,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:42,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:24:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:24:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:42,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:42,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:42,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:24:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:42,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:42,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:42,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:42,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:24:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:42,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:42,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:42,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:24:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:42,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:42,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:24:42,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:24:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:42,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:42,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:24:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:42,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:24:42,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:24:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:42,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 13:24:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:42,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:42,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:42,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:42,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:42,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 13:24:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:42,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:42,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:24:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:42,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 13:24:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:42,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:24:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:42,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:42,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:42,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:42,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:42,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:42,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:42,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-13 13:24:42,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835935694] [2020-10-13 13:24:42,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:24:42,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:24:42,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893459574] [2020-10-13 13:24:42,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:24:42,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:42,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:24:42,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:24:42,725 INFO L87 Difference]: Start difference. First operand 24888 states and 33638 transitions. Second operand 10 states. [2020-10-13 13:24:44,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:44,993 INFO L93 Difference]: Finished difference Result 44346 states and 59866 transitions. [2020-10-13 13:24:44,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:24:44,994 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-10-13 13:24:44,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:45,054 INFO L225 Difference]: With dead ends: 44346 [2020-10-13 13:24:45,054 INFO L226 Difference]: Without dead ends: 19568 [2020-10-13 13:24:45,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:24:45,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19568 states. [2020-10-13 13:24:46,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19568 to 18510. [2020-10-13 13:24:46,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18510 states. [2020-10-13 13:24:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18510 states to 18510 states and 24500 transitions. [2020-10-13 13:24:46,128 INFO L78 Accepts]: Start accepts. Automaton has 18510 states and 24500 transitions. Word has length 129 [2020-10-13 13:24:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:24:46,128 INFO L479 AbstractCegarLoop]: Abstraction has 18510 states and 24500 transitions. [2020-10-13 13:24:46,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:24:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 18510 states and 24500 transitions. [2020-10-13 13:24:46,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-13 13:24:46,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:24:46,134 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:24:46,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:24:46,135 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:24:46,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:24:46,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1211962869, now seen corresponding path program 1 times [2020-10-13 13:24:46,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:24:46,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444181361] [2020-10-13 13:24:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:24:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:46,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:46,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:46,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:46,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 13:24:51,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:24:51,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:24:51,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:24:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:24:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 13:24:51,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:24:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:24:51,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:51,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:51,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:24:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:24:51,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:24:51,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:51,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:51,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:24:51,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:24:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:51,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:51,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:51,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:51,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:51,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:24:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:51,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:51,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:51,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:24:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:51,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:51,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:51,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:51,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:51,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:24:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:51,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:51,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:24:51,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:24:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:51,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:24:51,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:24:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:24:51,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:24:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:51,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:24:51,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:51,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:51,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:24:51,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:24:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:24:51,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:24:51,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:24:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:24:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:24:51,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:24:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:51,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:24:51,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:24:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:24:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:24:51,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:24:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:51,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:51,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:51,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:51,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:24:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:24:51,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:51,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:24:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:24:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:24:51,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:24:51,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:51,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:24:51,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:51,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:24:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:24:51,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:24:51,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:24:51,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:24:51,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:24:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:24:51,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:24:51,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:24:51,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:24:51,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:24:51,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:24:51,603 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 13:24:51,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444181361] [2020-10-13 13:24:51,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:24:51,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:24:51,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644893495] [2020-10-13 13:24:51,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:24:51,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:24:51,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:24:51,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:24:51,605 INFO L87 Difference]: Start difference. First operand 18510 states and 24500 transitions. Second operand 16 states. [2020-10-13 13:24:53,805 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-10-13 13:24:57,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:24:57,535 INFO L93 Difference]: Finished difference Result 66691 states and 87622 transitions. [2020-10-13 13:24:57,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-13 13:24:57,535 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 131 [2020-10-13 13:24:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:24:57,690 INFO L225 Difference]: With dead ends: 66691 [2020-10-13 13:24:57,690 INFO L226 Difference]: Without dead ends: 48375 [2020-10-13 13:24:57,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=426, Invalid=1736, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 13:24:57,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48375 states. [2020-10-13 13:25:00,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48375 to 46249. [2020-10-13 13:25:00,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46249 states. [2020-10-13 13:25:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46249 states to 46249 states and 60906 transitions. [2020-10-13 13:25:00,654 INFO L78 Accepts]: Start accepts. Automaton has 46249 states and 60906 transitions. Word has length 131 [2020-10-13 13:25:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:00,654 INFO L479 AbstractCegarLoop]: Abstraction has 46249 states and 60906 transitions. [2020-10-13 13:25:00,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:25:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 46249 states and 60906 transitions. [2020-10-13 13:25:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-13 13:25:00,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:00,664 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:00,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:25:00,665 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:00,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:00,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1248749461, now seen corresponding path program 1 times [2020-10-13 13:25:00,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:00,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995436199] [2020-10-13 13:25:00,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:00,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:00,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:01,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:05,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:05,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 13:25:05,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:25:05,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:25:05,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:25:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:25:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 13:25:05,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:05,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:05,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:05,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:05,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:05,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:05,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:05,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:05,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:05,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:05,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:05,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:05,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:05,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:05,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:05,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:05,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:05,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:25:05,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:05,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:25:05,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:05,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:25:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:05,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:05,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:05,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:05,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:05,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:05,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:05,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:25:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:05,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:05,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:05,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:05,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:05,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:05,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:05,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:05,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:25:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:05,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:05,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:05,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:05,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:05,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:05,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:05,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:25:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:06,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:06,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:06,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:06,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:25:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:06,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:25:06,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:25:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:06,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:25:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:06,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:06,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:25:06,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:25:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:06,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:06,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:06,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:06,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:25:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 13:25:06,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:25:06,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:25:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:25:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 13:25:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:06,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:06,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:06,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 13:25:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:06,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:06,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:06,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:06,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:06,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:25:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:06,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:06,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:06,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:25:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:06,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:06,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:06,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:06,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:06,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:06,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:06,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:06,281 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 13:25:06,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995436199] [2020-10-13 13:25:06,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:25:06,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 13:25:06,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354762786] [2020-10-13 13:25:06,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:25:06,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:06,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:25:06,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:25:06,283 INFO L87 Difference]: Start difference. First operand 46249 states and 60906 transitions. Second operand 19 states. [2020-10-13 13:25:06,578 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2020-10-13 13:25:07,143 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-13 13:25:07,494 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-13 13:25:07,666 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-10-13 13:25:08,197 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2020-10-13 13:25:08,377 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2020-10-13 13:25:08,763 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-13 13:25:09,128 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2020-10-13 13:25:09,618 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-13 13:25:10,529 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-13 13:25:10,858 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-13 13:25:11,357 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-13 13:25:11,875 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-13 13:25:12,179 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 115 [2020-10-13 13:25:12,608 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2020-10-13 13:25:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:15,440 INFO L93 Difference]: Finished difference Result 56653 states and 74380 transitions. [2020-10-13 13:25:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-13 13:25:15,441 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 131 [2020-10-13 13:25:15,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:15,624 INFO L225 Difference]: With dead ends: 56653 [2020-10-13 13:25:15,624 INFO L226 Difference]: Without dead ends: 47799 [2020-10-13 13:25:15,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=611, Invalid=2359, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 13:25:15,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47799 states. [2020-10-13 13:25:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47799 to 46249. [2020-10-13 13:25:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46249 states. [2020-10-13 13:25:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46249 states to 46249 states and 60838 transitions. [2020-10-13 13:25:20,166 INFO L78 Accepts]: Start accepts. Automaton has 46249 states and 60838 transitions. Word has length 131 [2020-10-13 13:25:20,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:20,166 INFO L479 AbstractCegarLoop]: Abstraction has 46249 states and 60838 transitions. [2020-10-13 13:25:20,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:25:20,166 INFO L276 IsEmpty]: Start isEmpty. Operand 46249 states and 60838 transitions. [2020-10-13 13:25:20,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-13 13:25:20,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:20,173 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:20,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:25:20,174 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:20,174 INFO L82 PathProgramCache]: Analyzing trace with hash -474216969, now seen corresponding path program 1 times [2020-10-13 13:25:20,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:20,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523689099] [2020-10-13 13:25:20,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:20,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:20,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:20,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:20,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 13:25:25,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:25:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:25:25,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:25:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:25:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 13:25:25,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:25,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:25,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:25,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:25:25,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:25,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:25:25,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:25,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:25,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:25:25,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:25:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:25,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:25,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:25,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:25,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:25,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:25:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:25,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:25,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:25,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:25:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:25,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:25,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:25,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:25:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:25,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:25,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:25,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:25:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:25,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:25,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:25,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:25,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:25:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:25,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:25,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:25:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:25,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:25:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:25,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:25,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:25:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:25:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:25,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:25,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:25,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:25:25,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:25,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:25:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:25,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:25,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:25,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 13:25:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:25,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:25,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:25,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:25:25,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:25,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:25:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:25,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:25,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:25,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:25,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:25:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:25,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:25,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:25,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:25,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:25,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:25,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:25,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:25,583 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-13 13:25:25,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523689099] [2020-10-13 13:25:25,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:25:25,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:25:25,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251760492] [2020-10-13 13:25:25,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:25:25,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:25,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:25:25,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:25:25,585 INFO L87 Difference]: Start difference. First operand 46249 states and 60838 transitions. Second operand 14 states. [2020-10-13 13:25:25,821 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 13:25:26,437 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-13 13:25:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:29,843 INFO L93 Difference]: Finished difference Result 84621 states and 111781 transitions. [2020-10-13 13:25:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:25:29,844 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 131 [2020-10-13 13:25:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:29,957 INFO L225 Difference]: With dead ends: 84621 [2020-10-13 13:25:29,957 INFO L226 Difference]: Without dead ends: 38326 [2020-10-13 13:25:30,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:25:30,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38326 states. [2020-10-13 13:25:32,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38326 to 37743. [2020-10-13 13:25:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37743 states. [2020-10-13 13:25:32,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37743 states to 37743 states and 49126 transitions. [2020-10-13 13:25:32,775 INFO L78 Accepts]: Start accepts. Automaton has 37743 states and 49126 transitions. Word has length 131 [2020-10-13 13:25:32,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:32,776 INFO L479 AbstractCegarLoop]: Abstraction has 37743 states and 49126 transitions. [2020-10-13 13:25:32,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:25:32,776 INFO L276 IsEmpty]: Start isEmpty. Operand 37743 states and 49126 transitions. [2020-10-13 13:25:32,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 13:25:32,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:32,780 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:32,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 13:25:32,780 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:32,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:32,780 INFO L82 PathProgramCache]: Analyzing trace with hash 373207184, now seen corresponding path program 1 times [2020-10-13 13:25:32,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:32,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679627396] [2020-10-13 13:25:32,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:32,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:32,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:32,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:34,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:34,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:35,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:35,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:37,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:37,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 13:25:37,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:25:37,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:25:37,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:37,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:25:37,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 13:25:37,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 13:25:37,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:37,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:37,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:37,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:37,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:37,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:37,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:37,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:37,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:37,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:37,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:37,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:37,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:37,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:37,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:37,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:37,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:37,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:25:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:37,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:25:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:38,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:38,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:38,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:38,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:25:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:38,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:25:38,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:25:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:25:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:38,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:38,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:38,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:38,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:38,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:25:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:38,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:38,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:38,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:38,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:25:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:38,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:38,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:25:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:25:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:38,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:38,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:25:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:25:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:38,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:38,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:38,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:25:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:25:38,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:38,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:25:38,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:25:38,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:25:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:38,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:38,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:25:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:38,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:25:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:38,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:38,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:25:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:25:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:38,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:38,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:25:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:38,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:38,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:38,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:38,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:38,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:38,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:38,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:38,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:38,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 13:25:38,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679627396] [2020-10-13 13:25:38,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:25:38,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-13 13:25:38,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944528515] [2020-10-13 13:25:38,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-13 13:25:38,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:38,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-13 13:25:38,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:25:38,482 INFO L87 Difference]: Start difference. First operand 37743 states and 49126 transitions. Second operand 23 states. [2020-10-13 13:25:38,830 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2020-10-13 13:25:39,796 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:25:39,942 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-13 13:25:40,279 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-13 13:25:40,635 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-13 13:25:44,389 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:25:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:46,878 INFO L93 Difference]: Finished difference Result 79424 states and 102572 transitions. [2020-10-13 13:25:46,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-13 13:25:46,879 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 132 [2020-10-13 13:25:46,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:46,987 INFO L225 Difference]: With dead ends: 79424 [2020-10-13 13:25:46,987 INFO L226 Difference]: Without dead ends: 41875 [2020-10-13 13:25:47,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1341 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=791, Invalid=4465, Unknown=0, NotChecked=0, Total=5256 [2020-10-13 13:25:47,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41875 states. [2020-10-13 13:25:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41875 to 37989. [2020-10-13 13:25:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37989 states. [2020-10-13 13:25:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37989 states to 37989 states and 49423 transitions. [2020-10-13 13:25:49,843 INFO L78 Accepts]: Start accepts. Automaton has 37989 states and 49423 transitions. Word has length 132 [2020-10-13 13:25:49,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:49,844 INFO L479 AbstractCegarLoop]: Abstraction has 37989 states and 49423 transitions. [2020-10-13 13:25:49,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-13 13:25:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 37989 states and 49423 transitions. [2020-10-13 13:25:49,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 13:25:49,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:49,847 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:25:49,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 13:25:49,847 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:49,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:49,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1224518396, now seen corresponding path program 1 times [2020-10-13 13:25:49,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:49,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16008029] [2020-10-13 13:25:49,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:49,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:49,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:49,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:50,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:50,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:54,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:54,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 13:25:54,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:25:54,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 13:25:54,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:25:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 13:25:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 13:25:54,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:55,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:55,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:55,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:55,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:55,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:25:55,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:55,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:25:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:25:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:55,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:55,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:55,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:25:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:55,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:25:55,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:25:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:25:55,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:25:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:55,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:55,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:55,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:55,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:25:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:55,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:55,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:55,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:55,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:55,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:25:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:55,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:55,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:25:55,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:55,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:25:55,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:25:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:55,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:55,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:55,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:55,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:25:55,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:25:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:55,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:55,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:25:55,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:55,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:55,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:25:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:25:55,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:55,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:25:55,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:55,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:25:55,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:25:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:25:55,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:55,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:25:55,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:25:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:25:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 13:25:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:55,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:55,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:55,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:25:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:55,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:55,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:55,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:55,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:25:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:55,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:55,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:55,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:55,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:25:55,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:55,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:55,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 13:25:55,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16008029] [2020-10-13 13:25:55,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:25:55,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 13:25:55,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037210119] [2020-10-13 13:25:55,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 13:25:55,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:55,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 13:25:55,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:25:55,494 INFO L87 Difference]: Start difference. First operand 37989 states and 49423 transitions. Second operand 24 states. [2020-10-13 13:25:58,146 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:26:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:02,914 INFO L93 Difference]: Finished difference Result 59736 states and 77000 transitions. [2020-10-13 13:26:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-13 13:26:02,914 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 132 [2020-10-13 13:26:02,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:02,998 INFO L225 Difference]: With dead ends: 59736 [2020-10-13 13:26:02,998 INFO L226 Difference]: Without dead ends: 40873 [2020-10-13 13:26:03,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=702, Invalid=4268, Unknown=0, NotChecked=0, Total=4970 [2020-10-13 13:26:03,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40873 states. [2020-10-13 13:26:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40873 to 37989. [2020-10-13 13:26:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37989 states. [2020-10-13 13:26:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37989 states to 37989 states and 49419 transitions. [2020-10-13 13:26:05,607 INFO L78 Accepts]: Start accepts. Automaton has 37989 states and 49419 transitions. Word has length 132 [2020-10-13 13:26:05,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:05,607 INFO L479 AbstractCegarLoop]: Abstraction has 37989 states and 49419 transitions. [2020-10-13 13:26:05,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-13 13:26:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 37989 states and 49419 transitions. [2020-10-13 13:26:05,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 13:26:05,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:05,610 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:05,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 13:26:05,611 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:05,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:05,611 INFO L82 PathProgramCache]: Analyzing trace with hash -2063092592, now seen corresponding path program 2 times [2020-10-13 13:26:05,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:05,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2125146425] [2020-10-13 13:26:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:06,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:06,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:09,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:09,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:10,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:10,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 13:26:10,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:26:10,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 13:26:10,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-13 13:26:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 13:26:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:10,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:10,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:10,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:10,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:10,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:10,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:10,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:10,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:10,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:10,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:10,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:10,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:10,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:26:11,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 900 [2020-10-13 13:26:11,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:11,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:26:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:11,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:11,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:11,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:26:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:11,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:11,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:11,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:11,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:11,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:26:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:11,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:11,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:11,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:26:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:11,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:11,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:11,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:26:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:11,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:11,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:11,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:11,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:26:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:11,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:11,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:26:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:26:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:26:11,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:11,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:26:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:26:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:26:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:11,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:11,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:26:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:26:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:11,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:11,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:11,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:11,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:11,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:11,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-13 13:26:11,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2125146425] [2020-10-13 13:26:11,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:26:11,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:26:11,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908588602] [2020-10-13 13:26:11,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:26:11,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:11,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:26:11,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:26:11,843 INFO L87 Difference]: Start difference. First operand 37989 states and 49419 transitions. Second operand 10 states. [2020-10-13 13:26:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:15,440 INFO L93 Difference]: Finished difference Result 56733 states and 73829 transitions. [2020-10-13 13:26:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:26:15,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-10-13 13:26:15,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:15,508 INFO L225 Difference]: With dead ends: 56733 [2020-10-13 13:26:15,508 INFO L226 Difference]: Without dead ends: 18940 [2020-10-13 13:26:15,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:26:15,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18940 states. [2020-10-13 13:26:18,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18940 to 18810. [2020-10-13 13:26:18,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18810 states. [2020-10-13 13:26:18,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18810 states to 18810 states and 23870 transitions. [2020-10-13 13:26:18,930 INFO L78 Accepts]: Start accepts. Automaton has 18810 states and 23870 transitions. Word has length 132 [2020-10-13 13:26:18,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:18,930 INFO L479 AbstractCegarLoop]: Abstraction has 18810 states and 23870 transitions. [2020-10-13 13:26:18,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:26:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 18810 states and 23870 transitions. [2020-10-13 13:26:18,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 13:26:18,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:18,935 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:18,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 13:26:18,935 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:18,936 INFO L82 PathProgramCache]: Analyzing trace with hash -213069038, now seen corresponding path program 1 times [2020-10-13 13:26:18,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:18,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785411092] [2020-10-13 13:26:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:19,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:19,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:20,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:20,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 13:26:23,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:26:23,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:26:23,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:26:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:26:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 13:26:23,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:24,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:24,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:26:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:26:24,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:24,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:24,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:24,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 13:26:24,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:26:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:24,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:24,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:26:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:24,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:24,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:26:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:24,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:24,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:26:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:24,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:24,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:24,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:26:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:24,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:24,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:24,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:24,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:26:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:24,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:26:24,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:26:24,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:26:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:26:24,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:24,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:26:24,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:26:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:24,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:24,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 13:26:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:24,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:24,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:26:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:24,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:24,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:26:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:24,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:24,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:24,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:24,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:24,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:24,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:24,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:24,348 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-13 13:26:24,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785411092] [2020-10-13 13:26:24,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:26:24,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:26:24,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359989469] [2020-10-13 13:26:24,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:26:24,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:24,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:26:24,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:26:24,349 INFO L87 Difference]: Start difference. First operand 18810 states and 23870 transitions. Second operand 14 states. [2020-10-13 13:26:24,596 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-13 13:26:25,165 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-13 13:26:32,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:32,171 INFO L93 Difference]: Finished difference Result 77580 states and 99385 transitions. [2020-10-13 13:26:32,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-13 13:26:32,173 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 132 [2020-10-13 13:26:32,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:32,309 INFO L225 Difference]: With dead ends: 77580 [2020-10-13 13:26:32,309 INFO L226 Difference]: Without dead ends: 58889 [2020-10-13 13:26:32,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=568, Invalid=1784, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 13:26:32,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58889 states. [2020-10-13 13:26:36,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58889 to 50137. [2020-10-13 13:26:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50137 states. [2020-10-13 13:26:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50137 states to 50137 states and 63739 transitions. [2020-10-13 13:26:36,194 INFO L78 Accepts]: Start accepts. Automaton has 50137 states and 63739 transitions. Word has length 132 [2020-10-13 13:26:36,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:36,194 INFO L479 AbstractCegarLoop]: Abstraction has 50137 states and 63739 transitions. [2020-10-13 13:26:36,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:26:36,195 INFO L276 IsEmpty]: Start isEmpty. Operand 50137 states and 63739 transitions. [2020-10-13 13:26:36,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 13:26:36,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:36,198 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:36,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 13:26:36,198 INFO L427 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:36,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:36,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1386364467, now seen corresponding path program 1 times [2020-10-13 13:26:36,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:36,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475866809] [2020-10-13 13:26:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:36,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:36,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:37,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 13:26:41,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:26:41,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:26:41,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:26:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 13:26:41,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-13 13:26:41,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:41,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:41,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 13:26:41,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:26:41,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:26:41,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 13:26:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:41,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:41,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 13:26:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:41,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:26:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 13:26:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:26:41,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:41,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:41,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:41,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:26:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:41,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:41,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:41,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 13:26:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:41,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:41,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:41,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:41,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:26:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:41,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:26:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:26:41,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:41,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:41,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:41,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 13:26:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:26:41,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:26:41,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:26:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-13 13:26:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:41,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 13:26:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:41,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 13:26:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:41,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:41,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:41,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 13:26:41,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475866809] [2020-10-13 13:26:41,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:26:41,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 13:26:41,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640347563] [2020-10-13 13:26:41,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 13:26:41,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:41,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 13:26:41,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:26:41,891 INFO L87 Difference]: Start difference. First operand 50137 states and 63739 transitions. Second operand 24 states. [2020-10-13 13:26:42,729 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2020-10-13 13:26:43,438 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2020-10-13 13:26:43,607 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-13 13:26:43,735 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-10-13 13:26:44,066 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-10-13 13:26:44,247 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-13 13:26:44,548 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-13 13:26:44,689 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-10-13 13:26:44,965 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-13 13:26:45,297 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 13:26:50,044 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68