/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:27:20,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:27:20,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:27:20,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:27:20,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:27:21,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:27:21,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:27:21,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:27:21,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:27:21,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:27:21,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:27:21,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:27:21,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:27:21,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:27:21,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:27:21,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:27:21,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:27:21,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:27:21,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:27:21,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:27:21,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:27:21,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:27:21,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:27:21,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:27:21,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:27:21,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:27:21,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:27:21,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:27:21,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:27:21,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:27:21,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:27:21,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:27:21,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:27:21,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:27:21,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:27:21,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:27:21,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:27:21,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:27:21,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:27:21,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:27:21,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:27:21,080 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 [2020-10-15 02:27:21,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:27:21,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:27:21,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:27:21,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:27:21,122 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:27:21,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:27:21,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:27:21,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:27:21,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:27:21,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:27:21,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:27:21,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:27:21,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:27:21,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:27:21,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:27:21,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:27:21,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:27:21,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:27:21,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:27:21,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:27:21,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:27:21,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:27:21,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:27:21,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:27:21,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:27:21,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:27:21,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:27:21,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:27:21,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:27:21,128 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:27:21,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:27:21,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:27:21,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:27:21,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:27:21,517 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:27:21,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:27:21,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ea7a9a2a/dec379e8ed5e4480859eb590b59a4ce2/FLAG4e5841d8c [2020-10-15 02:27:22,066 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:27:22,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:27:22,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ea7a9a2a/dec379e8ed5e4480859eb590b59a4ce2/FLAG4e5841d8c [2020-10-15 02:27:22,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ea7a9a2a/dec379e8ed5e4480859eb590b59a4ce2 [2020-10-15 02:27:22,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:27:22,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:27:22,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:27:22,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:27:22,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:27:22,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5843e464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22, skipping insertion in model container [2020-10-15 02:27:22,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:27:22,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:27:22,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:27:22,845 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:27:22,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:27:22,932 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:27:22,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22 WrapperNode [2020-10-15 02:27:22,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:27:22,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:27:22,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:27:22,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:27:22,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (1/1) ... [2020-10-15 02:27:22,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:27:22,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:27:22,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:27:22,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:27:22,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (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 [2020-10-15 02:27:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:27:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:27:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:27:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:27:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:27:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:27:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:27:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:27:23,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:27:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:27:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:27:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:27:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:27:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:27:23,058 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:27:23,059 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:27:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:27:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:27:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:27:23,060 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:27:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:27:23,061 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:27:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:27:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:27:23,552 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:27:23,552 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:27:23,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:27:23 BoogieIcfgContainer [2020-10-15 02:27:23,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:27:23,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:27:23,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:27:23,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:27:23,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:27:22" (1/3) ... [2020-10-15 02:27:23,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcc5d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:27:23, skipping insertion in model container [2020-10-15 02:27:23,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:27:22" (2/3) ... [2020-10-15 02:27:23,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcc5d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:27:23, skipping insertion in model container [2020-10-15 02:27:23,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:27:23" (3/3) ... [2020-10-15 02:27:23,566 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c [2020-10-15 02:27:23,577 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:27:23,585 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:27:23,600 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:27:23,627 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:27:23,628 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:27:23,628 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:27:23,628 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:27:23,628 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:27:23,628 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:27:23,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:27:23,629 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:27:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-10-15 02:27:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 02:27:23,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:23,661 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] [2020-10-15 02:27:23,662 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:23,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:23,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1275961039, now seen corresponding path program 1 times [2020-10-15 02:27:23,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:23,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653322528] [2020-10-15 02:27:23,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:23,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:24,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:24,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-15 02:27:24,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-15 02:27:24,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:24,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 02:27:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:27:24,398 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-15 02:27:24,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:24,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:24,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:24,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:24,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:24,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:27:24,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:24,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:24,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:24,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:24,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:24,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:24,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:24,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:24,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:24,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:24,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:24,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:24,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:24,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:24,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 02:27:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:24,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:24,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:24,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:24,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:27:24,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:24,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:27:24,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:24,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:27:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:24,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:24,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:24,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:24,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:24,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:27:24,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:24,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:24,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:24,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:27:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:24,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:24,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 02:27:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:24,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:24,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:24,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:24,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:24,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:27:24,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:24,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:27:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:24,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:24,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:27:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:24,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:24,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:24,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:24,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:24,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:24,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:24,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:27:24,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653322528] [2020-10-15 02:27:24,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:24,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:27:24,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010873468] [2020-10-15 02:27:24,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:27:24,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:24,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:27:24,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:27:24,653 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 6 states. [2020-10-15 02:27:25,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:25,090 INFO L93 Difference]: Finished difference Result 149 states and 211 transitions. [2020-10-15 02:27:25,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:27:25,092 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-15 02:27:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:25,103 INFO L225 Difference]: With dead ends: 149 [2020-10-15 02:27:25,104 INFO L226 Difference]: Without dead ends: 84 [2020-10-15 02:27:25,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:27:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-15 02:27:25,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-15 02:27:25,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-15 02:27:25,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2020-10-15 02:27:25,161 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 49 [2020-10-15 02:27:25,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:25,161 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2020-10-15 02:27:25,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:27:25,162 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2020-10-15 02:27:25,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 02:27:25,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:25,164 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] [2020-10-15 02:27:25,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:27:25,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:25,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:25,166 INFO L82 PathProgramCache]: Analyzing trace with hash 881594253, now seen corresponding path program 1 times [2020-10-15 02:27:25,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:25,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976616471] [2020-10-15 02:27:25,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:25,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:25,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:25,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-15 02:27:25,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-15 02:27:25,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:25,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:27:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:27:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:27:25,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:25,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:25,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:25,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:25,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:25,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:25,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:27:25,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:25,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:25,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:25,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:25,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:25,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:25,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:27:25,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:25,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:25,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:27:25,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:25,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 02:27:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:25,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:25,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:25,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:25,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:25,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:27:25,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:25,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:27:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:25,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:25,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:27:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:25,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:25,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:25,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:25,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:25,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:25,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:25,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:27:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:25,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:25,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 02:27:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:25,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:25,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:25,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:25,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:25,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:25,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:27:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:25,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:27:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:25,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:25,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:25,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:25,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:25,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:27:25,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:25,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:25,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:25,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:25,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:25,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:27:25,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976616471] [2020-10-15 02:27:25,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:25,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:27:25,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193377081] [2020-10-15 02:27:25,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:27:25,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:25,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:27:25,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:27:25,905 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand 10 states. [2020-10-15 02:27:26,175 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-15 02:27:26,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:26,903 INFO L93 Difference]: Finished difference Result 153 states and 214 transitions. [2020-10-15 02:27:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:27:26,904 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-10-15 02:27:26,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:26,907 INFO L225 Difference]: With dead ends: 153 [2020-10-15 02:27:26,907 INFO L226 Difference]: Without dead ends: 93 [2020-10-15 02:27:26,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:27:26,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-15 02:27:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2020-10-15 02:27:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-15 02:27:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 104 transitions. [2020-10-15 02:27:26,928 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 104 transitions. Word has length 49 [2020-10-15 02:27:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:26,928 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 104 transitions. [2020-10-15 02:27:26,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:27:26,928 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 104 transitions. [2020-10-15 02:27:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-15 02:27:26,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:26,931 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] [2020-10-15 02:27:26,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:27:26,932 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:26,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:26,932 INFO L82 PathProgramCache]: Analyzing trace with hash -475670054, now seen corresponding path program 1 times [2020-10-15 02:27:26,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:26,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837390271] [2020-10-15 02:27:26,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:26,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:27,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:27,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:27,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:30,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:30,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 02:27:30,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:27:30,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4019 [2020-10-15 02:27:30,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:30,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:27:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:27:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:27:30,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:27:31,214 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-15 02:27:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:31,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:31,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:31,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:31,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:27:31,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:31,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:31,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:31,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:31,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:31,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:27:31,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:31,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:27:31,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:31,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:27:31,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:31,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:27:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:31,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:31,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:31,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:27:31,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:31,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:31,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:31,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:27:31,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:27:31,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:31,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:27:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:31,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:31,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:31,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:27:31,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:31,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:31,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:27:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:27:31,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:31,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:27:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:31,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:31,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:31,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:31,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:27:31,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:31,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:31,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:31,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:27:31,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:27:31,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:27:31,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:27:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:31,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:31,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:31,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:31,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:31,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:31,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:31,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:27:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:27:31,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:27:31,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837390271] [2020-10-15 02:27:31,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:31,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:27:31,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303733647] [2020-10-15 02:27:31,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:27:31,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:31,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:27:31,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:27:31,625 INFO L87 Difference]: Start difference. First operand 84 states and 104 transitions. Second operand 14 states. [2020-10-15 02:27:35,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:35,037 INFO L93 Difference]: Finished difference Result 474 states and 642 transitions. [2020-10-15 02:27:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-15 02:27:35,037 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 64 [2020-10-15 02:27:35,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:35,045 INFO L225 Difference]: With dead ends: 474 [2020-10-15 02:27:35,046 INFO L226 Difference]: Without dead ends: 420 [2020-10-15 02:27:35,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=574, Invalid=1976, Unknown=0, NotChecked=0, Total=2550 [2020-10-15 02:27:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-10-15 02:27:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 408. [2020-10-15 02:27:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-10-15 02:27:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 553 transitions. [2020-10-15 02:27:35,114 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 553 transitions. Word has length 64 [2020-10-15 02:27:35,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:35,114 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 553 transitions. [2020-10-15 02:27:35,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:27:35,115 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 553 transitions. [2020-10-15 02:27:35,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 02:27:35,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:35,119 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] [2020-10-15 02:27:35,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:27:35,119 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:35,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:35,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1058501526, now seen corresponding path program 1 times [2020-10-15 02:27:35,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:35,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713130007] [2020-10-15 02:27:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:35,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:35,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:35,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:35,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:35,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:39,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:40,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:40,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 02:27:40,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:27:40,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:27:40,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:40,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:40,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:27:40,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 02:27:40,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 02:27:40,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:40,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:40,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:40,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:40,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:40,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:40,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:27:40,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:40,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:40,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:40,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:40,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:40,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:27:40,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:40,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:27:40,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:40,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:40,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:27:40,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:40,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:27:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:40,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:40,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:40,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:40,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:40,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:27:40,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:40,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:27:40,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:27:40,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:27:40,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:40,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:27:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:40,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:40,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:40,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:40,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:40,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:40,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:40,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:27:40,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:27:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:40,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:40,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:40,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:40,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:40,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:27:40,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:40,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:40,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:27:40,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:40,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:27:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:40,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:40,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:40,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:40,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:27:40,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:27:40,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:27:40,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:40,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:40,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:27:40,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:27:40,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:27:40,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713130007] [2020-10-15 02:27:40,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:40,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:27:40,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222038710] [2020-10-15 02:27:40,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:27:40,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:40,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:27:40,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:27:40,428 INFO L87 Difference]: Start difference. First operand 408 states and 553 transitions. Second operand 11 states. [2020-10-15 02:27:42,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:42,130 INFO L93 Difference]: Finished difference Result 1755 states and 2421 transitions. [2020-10-15 02:27:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:27:42,131 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 66 [2020-10-15 02:27:42,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:42,150 INFO L225 Difference]: With dead ends: 1755 [2020-10-15 02:27:42,150 INFO L226 Difference]: Without dead ends: 1377 [2020-10-15 02:27:42,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2020-10-15 02:27:42,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-15 02:27:42,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1371. [2020-10-15 02:27:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1371 states. [2020-10-15 02:27:42,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1858 transitions. [2020-10-15 02:27:42,295 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1858 transitions. Word has length 66 [2020-10-15 02:27:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:42,296 INFO L479 AbstractCegarLoop]: Abstraction has 1371 states and 1858 transitions. [2020-10-15 02:27:42,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:27:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1858 transitions. [2020-10-15 02:27:42,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 02:27:42,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:42,300 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] [2020-10-15 02:27:42,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:27:42,301 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:42,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:42,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1948763314, now seen corresponding path program 1 times [2020-10-15 02:27:42,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:42,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623984024] [2020-10-15 02:27:42,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:42,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:42,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:42,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:42,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:44,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:44,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 02:27:44,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:27:44,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2607 [2020-10-15 02:27:44,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:44,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:27:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:27:44,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 02:27:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:45,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:45,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:45,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:45,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:45,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:45,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:27:45,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:45,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:45,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:45,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:45,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:45,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:45,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:27:45,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:45,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:27:45,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:45,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:27:45,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:45,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:27:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:45,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:45,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:45,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:45,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:27:45,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:45,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:45,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:27:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:27:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:45,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:27:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:45,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:45,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:45,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:45,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:45,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:27:45,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:45,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:45,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:45,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:27:45,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:27:45,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:45,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:27:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:45,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:45,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:45,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:45,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:27:45,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:45,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:27:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:27:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:27:45,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:45,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:27:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:45,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:45,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:45,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:27:45,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:27:45,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:45,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:27:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:27:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:27:45,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623984024] [2020-10-15 02:27:45,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:45,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:27:45,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123547798] [2020-10-15 02:27:45,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:27:45,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:45,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:27:45,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:27:45,268 INFO L87 Difference]: Start difference. First operand 1371 states and 1858 transitions. Second operand 13 states. [2020-10-15 02:27:47,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:47,953 INFO L93 Difference]: Finished difference Result 3191 states and 4380 transitions. [2020-10-15 02:27:47,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-15 02:27:47,953 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2020-10-15 02:27:47,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:47,967 INFO L225 Difference]: With dead ends: 3191 [2020-10-15 02:27:47,967 INFO L226 Difference]: Without dead ends: 1850 [2020-10-15 02:27:47,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=513, Invalid=1649, Unknown=0, NotChecked=0, Total=2162 [2020-10-15 02:27:47,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2020-10-15 02:27:48,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1728. [2020-10-15 02:27:48,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2020-10-15 02:27:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2356 transitions. [2020-10-15 02:27:48,117 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2356 transitions. Word has length 66 [2020-10-15 02:27:48,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:48,118 INFO L479 AbstractCegarLoop]: Abstraction has 1728 states and 2356 transitions. [2020-10-15 02:27:48,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:27:48,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2356 transitions. [2020-10-15 02:27:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 02:27:48,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:48,121 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] [2020-10-15 02:27:48,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:27:48,122 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:48,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:48,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1886425508, now seen corresponding path program 1 times [2020-10-15 02:27:48,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:48,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704808226] [2020-10-15 02:27:48,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:48,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:48,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:48,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:48,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:48,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:48,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:53,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:53,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 02:27:53,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:27:53,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:27:53,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:53,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:53,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:27:53,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:27:53,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 02:27:53,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:53,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:27:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:53,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:53,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:53,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:27:53,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:53,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:27:53,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:53,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:27:53,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:53,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:27:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:53,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:53,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:53,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:27:53,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:27:53,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:53,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:27:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:27:53,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:53,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:27:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:53,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:53,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:53,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:53,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:53,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:27:53,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:53,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:53,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:27:53,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:27:53,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:27:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:53,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:53,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:53,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:27:53,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:53,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:27:53,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:53,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:27:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:27:53,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:27:53,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:53,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:27:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:53,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:53,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:53,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:27:53,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:53,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:27:53,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:53,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:53,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:27:53,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:27:53,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:27:53,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:53,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:27:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:53,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:53,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:27:53,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:27:53,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:27:53,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:27:53,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:27:53,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:27:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:27:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:27:53,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:27:53,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:27:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:27:53,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704808226] [2020-10-15 02:27:53,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:27:53,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:27:53,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516094245] [2020-10-15 02:27:53,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:27:53,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:27:53,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:27:53,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:27:53,535 INFO L87 Difference]: Start difference. First operand 1728 states and 2356 transitions. Second operand 13 states. [2020-10-15 02:27:53,711 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-15 02:27:54,085 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-15 02:27:54,512 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-15 02:27:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:27:55,439 INFO L93 Difference]: Finished difference Result 3725 states and 5037 transitions. [2020-10-15 02:27:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:27:55,439 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2020-10-15 02:27:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:27:55,457 INFO L225 Difference]: With dead ends: 3725 [2020-10-15 02:27:55,457 INFO L226 Difference]: Without dead ends: 2027 [2020-10-15 02:27:55,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:27:55,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2020-10-15 02:27:55,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1841. [2020-10-15 02:27:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1841 states. [2020-10-15 02:27:55,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2507 transitions. [2020-10-15 02:27:55,719 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2507 transitions. Word has length 66 [2020-10-15 02:27:55,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:27:55,720 INFO L479 AbstractCegarLoop]: Abstraction has 1841 states and 2507 transitions. [2020-10-15 02:27:55,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:27:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2507 transitions. [2020-10-15 02:27:55,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 02:27:55,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:27:55,723 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] [2020-10-15 02:27:55,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:27:55,723 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:27:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:27:55,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1178191952, now seen corresponding path program 1 times [2020-10-15 02:27:55,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:27:55,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317047057] [2020-10-15 02:27:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:27:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:27:55,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:55,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:55,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:55,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:56,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:27:56,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:00,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:00,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 02:28:00,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:28:00,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:28:00,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:00,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:28:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:28:00,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 02:28:00,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:00,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:00,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:00,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:00,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:00,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:28:00,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:00,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:00,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:28:00,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:00,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:00,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:00,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:00,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:28:00,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:00,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:28:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:28:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:00,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:00,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:00,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:00,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:00,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:00,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:00,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:00,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:00,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:00,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:00,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:00,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:00,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:00,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:00,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:28:00,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:00,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:00,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:28:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:00,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:28:00,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:01,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:28:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:01,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:01,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:01,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:01,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:01,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:01,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:01,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:01,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:01,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:01,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:28:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:01,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:01,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:01,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:01,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:28:01,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:01,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:01,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:01,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:01,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317047057] [2020-10-15 02:28:01,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:01,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:28:01,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371505078] [2020-10-15 02:28:01,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:28:01,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:01,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:28:01,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:28:01,054 INFO L87 Difference]: Start difference. First operand 1841 states and 2507 transitions. Second operand 13 states. [2020-10-15 02:28:01,206 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-15 02:28:01,553 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-15 02:28:01,828 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-15 02:28:02,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:02,720 INFO L93 Difference]: Finished difference Result 4196 states and 5686 transitions. [2020-10-15 02:28:02,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:28:02,720 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2020-10-15 02:28:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:02,734 INFO L225 Difference]: With dead ends: 4196 [2020-10-15 02:28:02,734 INFO L226 Difference]: Without dead ends: 2420 [2020-10-15 02:28:02,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:28:02,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2020-10-15 02:28:02,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 1925. [2020-10-15 02:28:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1925 states. [2020-10-15 02:28:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2624 transitions. [2020-10-15 02:28:02,891 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2624 transitions. Word has length 66 [2020-10-15 02:28:02,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:02,892 INFO L479 AbstractCegarLoop]: Abstraction has 1925 states and 2624 transitions. [2020-10-15 02:28:02,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:28:02,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2624 transitions. [2020-10-15 02:28:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-15 02:28:02,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:02,893 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] [2020-10-15 02:28:02,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:28:02,894 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:02,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1896727580, now seen corresponding path program 1 times [2020-10-15 02:28:02,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:02,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985519704] [2020-10-15 02:28:02,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:02,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:02,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:03,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:03,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:03,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:07,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:07,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 02:28:07,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:28:07,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4634 [2020-10-15 02:28:07,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:07,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:28:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:28:07,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:28:07,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:07,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:07,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:07,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:07,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:07,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:07,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:07,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:28:07,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:07,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:07,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:07,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:07,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:07,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:07,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:07,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:07,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:28:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:07,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:28:07,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:07,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:07,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:07,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:07,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:07,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:07,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:28:07,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:07,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:28:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:28:07,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:07,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:28:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:07,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:07,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:07,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:07,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:07,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:07,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:07,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:07,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:07,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:07,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:07,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:07,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:28:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:07,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:07,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:07,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:07,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:07,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:07,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:07,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:07,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:28:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:07,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:07,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:07,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:07,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:07,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:28:07,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:07,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:07,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:07,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:07,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985519704] [2020-10-15 02:28:07,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:07,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:28:07,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710328569] [2020-10-15 02:28:07,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:28:07,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:07,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:28:07,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:28:07,862 INFO L87 Difference]: Start difference. First operand 1925 states and 2624 transitions. Second operand 13 states. [2020-10-15 02:28:08,028 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-10-15 02:28:08,376 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-10-15 02:28:08,511 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-15 02:28:09,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:09,613 INFO L93 Difference]: Finished difference Result 4037 states and 5560 transitions. [2020-10-15 02:28:09,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:28:09,613 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 66 [2020-10-15 02:28:09,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:09,629 INFO L225 Difference]: With dead ends: 4037 [2020-10-15 02:28:09,630 INFO L226 Difference]: Without dead ends: 2545 [2020-10-15 02:28:09,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:28:09,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2020-10-15 02:28:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1893. [2020-10-15 02:28:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2020-10-15 02:28:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2582 transitions. [2020-10-15 02:28:09,779 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2582 transitions. Word has length 66 [2020-10-15 02:28:09,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:09,780 INFO L479 AbstractCegarLoop]: Abstraction has 1893 states and 2582 transitions. [2020-10-15 02:28:09,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:28:09,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2582 transitions. [2020-10-15 02:28:09,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:28:09,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:09,781 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] [2020-10-15 02:28:09,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:28:09,781 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:09,782 INFO L82 PathProgramCache]: Analyzing trace with hash -682720420, now seen corresponding path program 1 times [2020-10-15 02:28:09,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:09,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891229414] [2020-10-15 02:28:09,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:09,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:09,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:09,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:09,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:14,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:14,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:28:14,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:28:14,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-15 02:28:14,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:14,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:14,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:14,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-15 02:28:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:28:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:14,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:14,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:14,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:14,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:14,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:14,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:14,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:14,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:14,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:14,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:14,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:14,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:14,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:14,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:14,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:14,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:14,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:14,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:14,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:14,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:14,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:14,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:14,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:14,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:14,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:14,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:14,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:14,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:14,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:14,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:14,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:14,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:14,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:14,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:14,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:15,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:15,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:15,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:15,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:15,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:15,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:15,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:15,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:15,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:15,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:15,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:15,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:15,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:15,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:15,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:15,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:15,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:15,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:15,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:28:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:15,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:15,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:15,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:15,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:15,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:15,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:15,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:15,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:15,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:28:15,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:15,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:15,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:15,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891229414] [2020-10-15 02:28:15,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:15,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:28:15,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728451032] [2020-10-15 02:28:15,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:28:15,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:15,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:28:15,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:28:15,081 INFO L87 Difference]: Start difference. First operand 1893 states and 2582 transitions. Second operand 9 states. [2020-10-15 02:28:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:16,204 INFO L93 Difference]: Finished difference Result 5212 states and 7184 transitions. [2020-10-15 02:28:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:28:16,205 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 02:28:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:16,224 INFO L225 Difference]: With dead ends: 5212 [2020-10-15 02:28:16,224 INFO L226 Difference]: Without dead ends: 3371 [2020-10-15 02:28:16,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:28:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3371 states. [2020-10-15 02:28:16,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3371 to 3225. [2020-10-15 02:28:16,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3225 states. [2020-10-15 02:28:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 4340 transitions. [2020-10-15 02:28:16,508 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 4340 transitions. Word has length 67 [2020-10-15 02:28:16,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:16,509 INFO L479 AbstractCegarLoop]: Abstraction has 3225 states and 4340 transitions. [2020-10-15 02:28:16,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:28:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 4340 transitions. [2020-10-15 02:28:16,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:28:16,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:16,510 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] [2020-10-15 02:28:16,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:28:16,511 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:16,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:16,511 INFO L82 PathProgramCache]: Analyzing trace with hash 133854096, now seen corresponding path program 1 times [2020-10-15 02:28:16,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:16,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990047519] [2020-10-15 02:28:16,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:16,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:16,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:16,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:16,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:21,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:21,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:28:21,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:28:21,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:28:21,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:21,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:21,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:28:21,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:28:21,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-15 02:28:21,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:21,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:21,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:21,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:21,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:21,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:21,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:21,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:21,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:21,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:21,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:21,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:28:21,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:21,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:21,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:21,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:21,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:21,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:28:21,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:21,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:28:21,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:21,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:21,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:21,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:21,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:21,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:21,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:21,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:21,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:21,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:21,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:21,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:21,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:21,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:21,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:21,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:21,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:21,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:21,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:21,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:21,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:21,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:21,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:21,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:21,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:21,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:21,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:21,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:21,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:21,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:21,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:21,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:21,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:21,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:21,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:28:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:21,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:21,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:21,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:21,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:28:21,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:21,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:28:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:21,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:21,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990047519] [2020-10-15 02:28:21,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:21,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:28:21,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501730422] [2020-10-15 02:28:21,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:28:21,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:21,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:28:21,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:28:21,792 INFO L87 Difference]: Start difference. First operand 3225 states and 4340 transitions. Second operand 13 states. [2020-10-15 02:28:21,957 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 02:28:22,352 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-15 02:28:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:23,228 INFO L93 Difference]: Finished difference Result 6499 states and 8791 transitions. [2020-10-15 02:28:23,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:28:23,229 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 67 [2020-10-15 02:28:23,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:23,247 INFO L225 Difference]: With dead ends: 6499 [2020-10-15 02:28:23,247 INFO L226 Difference]: Without dead ends: 3324 [2020-10-15 02:28:23,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:28:23,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2020-10-15 02:28:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 3225. [2020-10-15 02:28:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3225 states. [2020-10-15 02:28:23,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 4305 transitions. [2020-10-15 02:28:23,527 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 4305 transitions. Word has length 67 [2020-10-15 02:28:23,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:23,528 INFO L479 AbstractCegarLoop]: Abstraction has 3225 states and 4305 transitions. [2020-10-15 02:28:23,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:28:23,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 4305 transitions. [2020-10-15 02:28:23,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:28:23,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:23,529 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] [2020-10-15 02:28:23,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:28:23,530 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:23,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:23,530 INFO L82 PathProgramCache]: Analyzing trace with hash 71814482, now seen corresponding path program 1 times [2020-10-15 02:28:23,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:23,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374638996] [2020-10-15 02:28:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:23,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:23,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:25,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:25,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:28:25,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:28:25,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2430 [2020-10-15 02:28:25,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:25,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:28:25,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 02:28:25,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:26,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:26,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:26,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:26,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:26,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:26,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:26,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:26,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:26,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:26,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:26,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:26,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:26,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:26,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:26,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:26,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:28:26,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:26,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:28:26,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:26,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:26,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:26,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:26,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:26,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:28:26,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:26,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:26,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:26,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:26,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:26,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:26,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:26,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:26,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:26,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:26,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:26,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:26,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:26,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:26,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:26,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:26,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:26,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:26,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:26,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:28:26,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:26,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:26,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:26,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:26,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:26,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:28:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:26,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:26,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:26,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:26,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:26,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:26,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:26,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:28:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:26,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374638996] [2020-10-15 02:28:26,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:26,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:28:26,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119504552] [2020-10-15 02:28:26,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:28:26,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:26,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:28:26,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:28:26,281 INFO L87 Difference]: Start difference. First operand 3225 states and 4305 transitions. Second operand 9 states. [2020-10-15 02:28:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:27,568 INFO L93 Difference]: Finished difference Result 9069 states and 12187 transitions. [2020-10-15 02:28:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:28:27,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 02:28:27,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:27,602 INFO L225 Difference]: With dead ends: 9069 [2020-10-15 02:28:27,602 INFO L226 Difference]: Without dead ends: 5910 [2020-10-15 02:28:27,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:28:27,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2020-10-15 02:28:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5908. [2020-10-15 02:28:28,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5908 states. [2020-10-15 02:28:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 7753 transitions. [2020-10-15 02:28:28,080 INFO L78 Accepts]: Start accepts. Automaton has 5908 states and 7753 transitions. Word has length 67 [2020-10-15 02:28:28,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:28,080 INFO L479 AbstractCegarLoop]: Abstraction has 5908 states and 7753 transitions. [2020-10-15 02:28:28,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:28:28,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5908 states and 7753 transitions. [2020-10-15 02:28:28,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:28:28,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:28,082 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] [2020-10-15 02:28:28,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:28:28,082 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:28,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:28,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1514787812, now seen corresponding path program 1 times [2020-10-15 02:28:28,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:28,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540630156] [2020-10-15 02:28:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:28,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:28:28,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:28:28,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-15 02:28:28,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 02:28:28,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:28:28,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:28,668 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-15 02:28:28,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:28,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:28,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:28,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:28,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:28,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:28,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:28,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:28,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:28,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:28,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:28:28,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:28,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:28,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:28,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:28,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:28:28,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:28,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:28,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:28,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:28,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:28,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:28,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:28,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:28,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:28,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:28,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:28,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:28,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:28,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:28:28,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:28,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:28,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:28:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:28,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:28,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:28,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:28,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:28,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:28,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:28,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:28,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:28:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:28,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:28,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540630156] [2020-10-15 02:28:28,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:28,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:28:28,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548276740] [2020-10-15 02:28:28,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:28:28,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:28,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:28:28,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:28:28,872 INFO L87 Difference]: Start difference. First operand 5908 states and 7753 transitions. Second operand 9 states. [2020-10-15 02:28:30,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:30,102 INFO L93 Difference]: Finished difference Result 13134 states and 17423 transitions. [2020-10-15 02:28:30,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 02:28:30,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-15 02:28:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:30,140 INFO L225 Difference]: With dead ends: 13134 [2020-10-15 02:28:30,141 INFO L226 Difference]: Without dead ends: 8928 [2020-10-15 02:28:30,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:28:30,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8928 states. [2020-10-15 02:28:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8928 to 8926. [2020-10-15 02:28:30,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8926 states. [2020-10-15 02:28:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8926 states to 8926 states and 11577 transitions. [2020-10-15 02:28:30,872 INFO L78 Accepts]: Start accepts. Automaton has 8926 states and 11577 transitions. Word has length 67 [2020-10-15 02:28:30,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:30,872 INFO L479 AbstractCegarLoop]: Abstraction has 8926 states and 11577 transitions. [2020-10-15 02:28:30,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:28:30,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8926 states and 11577 transitions. [2020-10-15 02:28:30,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:28:30,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:30,873 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] [2020-10-15 02:28:30,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:28:30,873 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:30,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:30,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1496719002, now seen corresponding path program 1 times [2020-10-15 02:28:30,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:30,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348799209] [2020-10-15 02:28:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:30,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:31,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:28:31,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-15 02:28:31,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:31,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:28:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-15 02:28:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:28:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:31,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:31,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:31,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:31,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:31,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:31,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:31,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:31,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:31,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:31,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:31,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:31,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:31,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:31,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:31,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:31,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:31,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:31,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:31,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:31,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:31,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:31,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:31,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:31,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:31,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:31,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:31,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:31,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:31,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:31,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:31,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:31,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:31,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:31,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:31,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:31,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:31,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:31,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:31,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:31,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:31,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:31,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:31,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:31,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:31,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:31,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:31,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:28:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:31,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:31,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:31,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:31,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:31,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:31,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:31,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:31,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:28:31,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:28:31,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348799209] [2020-10-15 02:28:31,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:28:31,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 02:28:31,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869800123] [2020-10-15 02:28:31,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 02:28:31,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:31,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 02:28:31,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:28:31,234 INFO L87 Difference]: Start difference. First operand 8926 states and 11577 transitions. Second operand 12 states. [2020-10-15 02:28:32,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:32,644 INFO L93 Difference]: Finished difference Result 9697 states and 12908 transitions. [2020-10-15 02:28:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:28:32,645 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-10-15 02:28:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:32,682 INFO L225 Difference]: With dead ends: 9697 [2020-10-15 02:28:32,682 INFO L226 Difference]: Without dead ends: 9695 [2020-10-15 02:28:32,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:28:32,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9695 states. [2020-10-15 02:28:33,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9695 to 9142. [2020-10-15 02:28:33,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9142 states. [2020-10-15 02:28:33,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9142 states to 9142 states and 11749 transitions. [2020-10-15 02:28:33,257 INFO L78 Accepts]: Start accepts. Automaton has 9142 states and 11749 transitions. Word has length 67 [2020-10-15 02:28:33,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:33,257 INFO L479 AbstractCegarLoop]: Abstraction has 9142 states and 11749 transitions. [2020-10-15 02:28:33,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 02:28:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 9142 states and 11749 transitions. [2020-10-15 02:28:33,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 02:28:33,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:33,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:28:33,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:28:33,260 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:33,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:33,261 INFO L82 PathProgramCache]: Analyzing trace with hash 468299795, now seen corresponding path program 1 times [2020-10-15 02:28:33,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:33,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248330653] [2020-10-15 02:28:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:33,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:33,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:33,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:34,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:35,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:35,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-15 02:28:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:38,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:38,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:38,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:38,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:38,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:38,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:28:38,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:38,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:38,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:38,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:28:38,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:38,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:28:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:38,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:38,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:28:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:28:38,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:28:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:28:38,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:38,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:38,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:28:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:38,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:28:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:38,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:28:38,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:28:38,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:38,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:38,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:28:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:38,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:38,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:28:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:28:38,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:38,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:28:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:38,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:38,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:38,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:38,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:38,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:38,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:38,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:28:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:28:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:38,609 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-15 02:28:38,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248330653] [2020-10-15 02:28:38,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:28:38,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:28:38,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182693429] [2020-10-15 02:28:38,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:28:38,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:38,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:28:38,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:28:38,611 INFO L87 Difference]: Start difference. First operand 9142 states and 11749 transitions. Second operand 15 states. [2020-10-15 02:28:38,779 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 02:28:40,011 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 02:28:42,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:42,024 INFO L93 Difference]: Finished difference Result 20978 states and 27695 transitions. [2020-10-15 02:28:42,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-15 02:28:42,024 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 105 [2020-10-15 02:28:42,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:42,071 INFO L225 Difference]: With dead ends: 20978 [2020-10-15 02:28:42,072 INFO L226 Difference]: Without dead ends: 13100 [2020-10-15 02:28:42,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=439, Invalid=1283, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:28:42,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13100 states. [2020-10-15 02:28:43,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13100 to 12932. [2020-10-15 02:28:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12932 states. [2020-10-15 02:28:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12932 states to 12932 states and 16687 transitions. [2020-10-15 02:28:43,629 INFO L78 Accepts]: Start accepts. Automaton has 12932 states and 16687 transitions. Word has length 105 [2020-10-15 02:28:43,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:43,629 INFO L479 AbstractCegarLoop]: Abstraction has 12932 states and 16687 transitions. [2020-10-15 02:28:43,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:28:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 12932 states and 16687 transitions. [2020-10-15 02:28:43,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 02:28:43,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:43,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:28:43,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:28:43,632 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:43,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1698649631, now seen corresponding path program 1 times [2020-10-15 02:28:43,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:43,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054380713] [2020-10-15 02:28:43,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:43,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:43,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:43,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:44,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:44,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:45,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:48,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:48,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-15 02:28:48,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:28:48,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:28:48,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:48,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:28:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:28:48,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-15 02:28:48,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:48,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:28:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:48,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:48,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:48,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:28:48,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:48,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:48,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:48,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:48,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:48,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:48,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:28:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:48,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:48,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:48,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:28:48,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:48,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:48,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:48,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:28:48,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:48,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:28:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:48,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:48,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:48,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:48,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:48,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:48,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:48,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:48,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:48,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:48,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:48,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:48,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:28:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:48,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:48,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:48,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:48,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:48,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:28:48,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:48,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:28:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:48,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:48,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:28:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:48,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:48,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:48,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:48,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:48,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:48,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:48,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:48,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:48,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:48,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:28:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:48,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:48,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:48,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:48,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:48,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:48,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:48,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:48,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:48,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:48,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:28:48,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:48,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:28:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:49,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:49,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:49,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:28:49,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:49,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:28:49,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:49,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:28:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:49,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:28:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:49,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:49,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:28:49,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:49,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:28:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:28:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:49,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:49,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:49,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:28:49,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:49,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:28:49,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:49,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:28:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:28:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:28:49,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:28:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:49,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:49,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:49,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:28:49,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:49,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:28:49,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:49,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:49,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:28:49,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:28:49,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:28:49,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:28:49,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:28:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:49,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:49,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:28:49,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:28:49,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:28:49,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:28:49,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:28:49,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:28:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:28:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:28:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:28:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:28:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 02:28:49,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054380713] [2020-10-15 02:28:49,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:28:49,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:28:49,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105072622] [2020-10-15 02:28:49,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:28:49,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:28:49,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:28:49,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:28:49,116 INFO L87 Difference]: Start difference. First operand 12932 states and 16687 transitions. Second operand 15 states. [2020-10-15 02:28:49,792 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2020-10-15 02:28:50,689 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2020-10-15 02:28:53,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:28:53,656 INFO L93 Difference]: Finished difference Result 42616 states and 54566 transitions. [2020-10-15 02:28:53,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-15 02:28:53,657 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 105 [2020-10-15 02:28:53,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:28:53,779 INFO L225 Difference]: With dead ends: 42616 [2020-10-15 02:28:53,780 INFO L226 Difference]: Without dead ends: 29478 [2020-10-15 02:28:53,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=444, Invalid=1812, Unknown=0, NotChecked=0, Total=2256 [2020-10-15 02:28:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29478 states. [2020-10-15 02:28:56,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29478 to 28650. [2020-10-15 02:28:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28650 states. [2020-10-15 02:28:56,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28650 states to 28650 states and 36621 transitions. [2020-10-15 02:28:56,653 INFO L78 Accepts]: Start accepts. Automaton has 28650 states and 36621 transitions. Word has length 105 [2020-10-15 02:28:56,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:28:56,653 INFO L479 AbstractCegarLoop]: Abstraction has 28650 states and 36621 transitions. [2020-10-15 02:28:56,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:28:56,653 INFO L276 IsEmpty]: Start isEmpty. Operand 28650 states and 36621 transitions. [2020-10-15 02:28:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 02:28:56,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:28:56,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:28:56,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:28:56,658 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:28:56,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:28:56,658 INFO L82 PathProgramCache]: Analyzing trace with hash 104364949, now seen corresponding path program 1 times [2020-10-15 02:28:56,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:28:56,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216642087] [2020-10-15 02:28:56,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:28:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:28:56,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:56,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:28:56,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:00,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-15 02:29:01,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:29:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-15 02:29:01,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:29:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-15 02:29:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:29:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:01,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:01,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:01,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:01,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:01,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:01,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:01,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:29:01,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:01,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:29:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:01,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:29:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:01,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:01,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:01,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:29:01,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:01,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:01,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:01,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:01,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:01,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:01,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:01,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:01,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:01,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:01,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:01,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:29:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:01,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:01,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:01,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:01,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:01,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:01,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:29:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:01,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:29:01,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:01,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:29:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:01,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:01,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:01,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:01,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:01,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:01,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:01,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:29:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:01,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:01,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:01,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:01,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:01,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:29:01,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:01,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:01,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:01,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:01,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:01,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:02,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:29:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:02,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:02,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:02,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:02,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:02,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:02,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:02,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:29:02,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:02,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:29:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:02,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:02,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:02,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:02,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:02,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:02,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:02,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:02,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:02,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:02,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:02,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:02,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:29:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:02,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:02,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:02,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:02,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:02,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:02,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:02,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:02,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:02,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:29:02,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:29:02,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-15 02:29:02,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216642087] [2020-10-15 02:29:02,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:29:02,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:29:02,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520671332] [2020-10-15 02:29:02,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:29:02,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:02,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:29:02,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:29:02,085 INFO L87 Difference]: Start difference. First operand 28650 states and 36621 transitions. Second operand 15 states. [2020-10-15 02:29:02,257 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 02:29:03,410 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 02:29:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:06,670 INFO L93 Difference]: Finished difference Result 56058 states and 71973 transitions. [2020-10-15 02:29:06,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-15 02:29:06,671 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 105 [2020-10-15 02:29:06,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:06,783 INFO L225 Difference]: With dead ends: 56058 [2020-10-15 02:29:06,783 INFO L226 Difference]: Without dead ends: 34284 [2020-10-15 02:29:06,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=439, Invalid=1283, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:29:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34284 states. [2020-10-15 02:29:09,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34284 to 33506. [2020-10-15 02:29:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33506 states. [2020-10-15 02:29:09,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33506 states to 33506 states and 42793 transitions. [2020-10-15 02:29:09,896 INFO L78 Accepts]: Start accepts. Automaton has 33506 states and 42793 transitions. Word has length 105 [2020-10-15 02:29:09,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:09,897 INFO L479 AbstractCegarLoop]: Abstraction has 33506 states and 42793 transitions. [2020-10-15 02:29:09,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:29:09,897 INFO L276 IsEmpty]: Start isEmpty. Operand 33506 states and 42793 transitions. [2020-10-15 02:29:09,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 02:29:09,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:09,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:29:09,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:29:09,901 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:09,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:09,901 INFO L82 PathProgramCache]: Analyzing trace with hash -614170679, now seen corresponding path program 1 times [2020-10-15 02:29:09,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:09,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41666591] [2020-10-15 02:29:09,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:09,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:09,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:09,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:10,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:14,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:14,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-15 02:29:14,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:29:14,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:29:14,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:14,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:29:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:29:14,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-15 02:29:14,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:15,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:15,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:15,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:29:15,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:15,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:15,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:29:15,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:29:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:15,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:29:15,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:29:15,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:15,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:15,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,215 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2020-10-15 02:29:15,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:15,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:15,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:15,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:29:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:15,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:15,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:15,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:29:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:15,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:15,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:29:15,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:29:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:15,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:15,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:15,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:15,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:29:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:15,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:15,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:15,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:29:15,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:29:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:15,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:29:15,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:29:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:15,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:15,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:29:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:15,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:15,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:29:15,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:15,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:29:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:15,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:15,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:15,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:15,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:15,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:15,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:15,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:29:15,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:15,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:15,397 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-15 02:29:15,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41666591] [2020-10-15 02:29:15,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:29:15,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:29:15,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920569659] [2020-10-15 02:29:15,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:29:15,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:15,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:29:15,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:29:15,399 INFO L87 Difference]: Start difference. First operand 33506 states and 42793 transitions. Second operand 15 states. [2020-10-15 02:29:15,937 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2020-10-15 02:29:16,940 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 100 [2020-10-15 02:29:18,681 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-15 02:29:24,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:24,570 INFO L93 Difference]: Finished difference Result 137717 states and 177349 transitions. [2020-10-15 02:29:24,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-15 02:29:24,571 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 105 [2020-10-15 02:29:24,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:24,916 INFO L225 Difference]: With dead ends: 137717 [2020-10-15 02:29:24,917 INFO L226 Difference]: Without dead ends: 104263 [2020-10-15 02:29:24,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=526, Invalid=2230, Unknown=0, NotChecked=0, Total=2756 [2020-10-15 02:29:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104263 states. [2020-10-15 02:29:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104263 to 98883. [2020-10-15 02:29:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98883 states. [2020-10-15 02:29:33,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98883 states to 98883 states and 127147 transitions. [2020-10-15 02:29:33,635 INFO L78 Accepts]: Start accepts. Automaton has 98883 states and 127147 transitions. Word has length 105 [2020-10-15 02:29:33,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:33,635 INFO L479 AbstractCegarLoop]: Abstraction has 98883 states and 127147 transitions. [2020-10-15 02:29:33,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:29:33,635 INFO L276 IsEmpty]: Start isEmpty. Operand 98883 states and 127147 transitions. [2020-10-15 02:29:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-15 02:29:33,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:33,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:29:33,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:29:33,641 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:33,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:33,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1301440915, now seen corresponding path program 1 times [2020-10-15 02:29:33,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:33,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981973156] [2020-10-15 02:29:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:33,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:33,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:33,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:36,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:36,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:39,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:39,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-15 02:29:39,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:29:39,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6244 [2020-10-15 02:29:39,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:39,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:29:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:29:39,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-15 02:29:39,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:39,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:29:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:29:40,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:40,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:29:40,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:29:40,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:29:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:29:40,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:40,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:29:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:29:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:40,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:29:40,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:40,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:29:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:40,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:29:40,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:29:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:40,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:40,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:29:40,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:29:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:40,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:29:40,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:29:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:29:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:29:40,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:29:40,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:29:40,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:29:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:29:40,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:40,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:29:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:29:40,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:29:40,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:29:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:40,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:29:40,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:29:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:29:40,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:29:40,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:29:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:29:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:29:40,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:29:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:40,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:40,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:29:40,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:29:40,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:29:40,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:29:40,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:29:40,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:29:40,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:29:40,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:29:40,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:29:40,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:29:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-15 02:29:40,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981973156] [2020-10-15 02:29:40,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:29:40,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:29:40,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49988057] [2020-10-15 02:29:40,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:29:40,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:29:40,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:29:40,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:29:40,234 INFO L87 Difference]: Start difference. First operand 98883 states and 127147 transitions. Second operand 15 states. [2020-10-15 02:29:40,404 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 02:29:41,343 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-15 02:29:48,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:29:48,341 INFO L93 Difference]: Finished difference Result 138524 states and 178702 transitions. [2020-10-15 02:29:48,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-15 02:29:48,342 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 105 [2020-10-15 02:29:48,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:29:48,587 INFO L225 Difference]: With dead ends: 138524 [2020-10-15 02:29:48,588 INFO L226 Difference]: Without dead ends: 106957 [2020-10-15 02:29:48,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=439, Invalid=1283, Unknown=0, NotChecked=0, Total=1722 [2020-10-15 02:29:48,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106957 states. [2020-10-15 02:29:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106957 to 103447. [2020-10-15 02:29:58,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103447 states. [2020-10-15 02:29:58,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103447 states to 103447 states and 133018 transitions. [2020-10-15 02:29:58,502 INFO L78 Accepts]: Start accepts. Automaton has 103447 states and 133018 transitions. Word has length 105 [2020-10-15 02:29:58,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:29:58,503 INFO L479 AbstractCegarLoop]: Abstraction has 103447 states and 133018 transitions. [2020-10-15 02:29:58,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:29:58,503 INFO L276 IsEmpty]: Start isEmpty. Operand 103447 states and 133018 transitions. [2020-10-15 02:29:58,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 02:29:58,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:29:58,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:29:58,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:29:58,509 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:29:58,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:29:58,509 INFO L82 PathProgramCache]: Analyzing trace with hash -241430359, now seen corresponding path program 1 times [2020-10-15 02:29:58,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:29:58,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691546132] [2020-10-15 02:29:58,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:29:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:29:58,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:58,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:58,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:59,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:59,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:29:59,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-15 02:30:03,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:30:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:30:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:30:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:30:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-15 02:30:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:03,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:03,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:03,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:03,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:03,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:30:03,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:30:03,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:30:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:03,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:30:03,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:30:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:03,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:30:03,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:30:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:03,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:30:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:03,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:03,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:03,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:03,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:30:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:03,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:03,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:30:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:03,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:03,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:30:03,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:30:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:03,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:03,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:03,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:03,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:30:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:03,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:03,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:03,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:30:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:03,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:03,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:30:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:03,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:30:03,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-15 02:30:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:03,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-15 02:30:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:03,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:03,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:03,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:30:03,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:03,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:03,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:03,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:30:03,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:03,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-15 02:30:03,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691546132] [2020-10-15 02:30:03,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:30:03,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-15 02:30:03,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536562169] [2020-10-15 02:30:03,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-15 02:30:03,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:03,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-15 02:30:03,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-15 02:30:03,980 INFO L87 Difference]: Start difference. First operand 103447 states and 133018 transitions. Second operand 18 states. [2020-10-15 02:30:04,446 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-10-15 02:30:04,716 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-15 02:30:05,107 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-15 02:30:05,750 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-15 02:30:06,170 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-15 02:30:06,668 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-10-15 02:30:09,000 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-10-15 02:30:15,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:30:15,400 INFO L93 Difference]: Finished difference Result 194224 states and 250237 transitions. [2020-10-15 02:30:15,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-15 02:30:15,400 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 107 [2020-10-15 02:30:15,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:30:15,797 INFO L225 Difference]: With dead ends: 194224 [2020-10-15 02:30:15,797 INFO L226 Difference]: Without dead ends: 110036 [2020-10-15 02:30:15,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 918 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=771, Invalid=3011, Unknown=0, NotChecked=0, Total=3782 [2020-10-15 02:30:16,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110036 states. [2020-10-15 02:30:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110036 to 104058. [2020-10-15 02:30:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104058 states. [2020-10-15 02:30:27,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104058 states to 104058 states and 133098 transitions. [2020-10-15 02:30:27,311 INFO L78 Accepts]: Start accepts. Automaton has 104058 states and 133098 transitions. Word has length 107 [2020-10-15 02:30:27,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:30:27,311 INFO L479 AbstractCegarLoop]: Abstraction has 104058 states and 133098 transitions. [2020-10-15 02:30:27,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-15 02:30:27,311 INFO L276 IsEmpty]: Start isEmpty. Operand 104058 states and 133098 transitions. [2020-10-15 02:30:27,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-15 02:30:27,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:30:27,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:30:27,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 02:30:27,317 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:30:27,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:30:27,317 INFO L82 PathProgramCache]: Analyzing trace with hash 486466933, now seen corresponding path program 1 times [2020-10-15 02:30:27,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:30:27,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488729798] [2020-10-15 02:30:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:30:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:27,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:27,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:27,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:27,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-15 02:30:32,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:30:32,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:30:32,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:30:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:30:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-15 02:30:32,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,569 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-15 02:30:32,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:30:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:30:32,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:30:32,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:32,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:30:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:30:32,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:32,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:32,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:30:32,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 02:30:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:32,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:30:32,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:32,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 02:30:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:32,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:30:32,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:32,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:32,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:30:32,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-15 02:30:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:32,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:30:32,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:30:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:32,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-15 02:30:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:32,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:32,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:32,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:32,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:30:32,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-15 02:30:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:30:32,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:30:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:32,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:30:32,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:30:32,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:30:32,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:30:32,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:30:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:30:32,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:32,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:30:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:32,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:30:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 02:30:32,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:30:32,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:32,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:30:32,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:32,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:30:32,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 02:30:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:30:32,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:30:32,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:30:32,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:30:32,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:30:32,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:30:32,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:30:32,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:30:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:30:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:30:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:30:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:30:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:30:32,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488729798] [2020-10-15 02:30:32,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:30:32,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:30:32,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802560836] [2020-10-15 02:30:32,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:30:32,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:30:32,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:30:32,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:30:32,907 INFO L87 Difference]: Start difference. First operand 104058 states and 133098 transitions. Second operand 15 states. [2020-10-15 02:30:33,591 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2020-10-15 02:30:34,678 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 101