/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 SingleStatement --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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:22:01,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:22:01,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:22:01,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:22:01,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:22:01,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:22:01,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:22:02,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:22:02,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:22:02,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:22:02,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:22:02,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:22:02,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:22:02,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:22:02,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:22:02,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:22:02,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:22:02,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:22:02,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:22:02,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:22:02,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:22:02,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:22:02,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:22:02,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:22:02,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:22:02,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:22:02,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:22:02,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:22:02,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:22:02,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:22:02,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:22:02,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:22:02,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:22:02,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:22:02,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:22:02,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:22:02,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:22:02,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:22:02,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:22:02,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:22:02,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:22:02,067 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 [2020-09-25 14:22:02,111 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:22:02,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:22:02,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:22:02,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:22:02,114 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:22:02,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:22:02,114 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:22:02,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:22:02,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:22:02,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:22:02,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:22:02,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:22:02,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:22:02,117 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:22:02,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:22:02,117 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:22:02,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:22:02,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:22:02,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:22:02,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:22:02,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:22:02,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:22:02,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:22:02,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:22:02,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:22:02,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:22:02,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:22:02,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:22:02,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:22:02,120 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 -> SingleStatement 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=0.5;log-additional-information=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=0.5;log-additional-information=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=0.5;log-additional-information=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=0.5;log-additional-information=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=0.5;log-additional-information=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=0.5;log-additional-information=true; [2020-09-25 14:22:02,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:22:02,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:22:02,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:22:02,617 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:22:02,617 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:22:02,619 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 14:22:02,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbaa68749/bf1d13926a074cc69e7e56aff2ba7aa9/FLAG1bdf5ebc0 [2020-09-25 14:22:03,282 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:22:03,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-25 14:22:03,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbaa68749/bf1d13926a074cc69e7e56aff2ba7aa9/FLAG1bdf5ebc0 [2020-09-25 14:22:03,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbaa68749/bf1d13926a074cc69e7e56aff2ba7aa9 [2020-09-25 14:22:03,613 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:22:03,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:22:03,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:22:03,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:22:03,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:22:03,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:22:03" (1/1) ... [2020-09-25 14:22:03,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:03, skipping insertion in model container [2020-09-25 14:22:03,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:22:03" (1/1) ... [2020-09-25 14:22:03,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:22:03,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:22:04,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:22:04,243 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:22:04,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:22:04,369 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:22:04,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04 WrapperNode [2020-09-25 14:22:04,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:22:04,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:22:04,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:22:04,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:22:04,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (1/1) ... [2020-09-25 14:22:04,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (1/1) ... [2020-09-25 14:22:04,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (1/1) ... [2020-09-25 14:22:04,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (1/1) ... [2020-09-25 14:22:04,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (1/1) ... [2020-09-25 14:22:04,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (1/1) ... [2020-09-25 14:22:04,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (1/1) ... [2020-09-25 14:22:04,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:22:04,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:22:04,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:22:04,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:22:04,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (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 [2020-09-25 14:22:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:22:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:22:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:22:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:22:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:22:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:22:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:22:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:22:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:22:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:22:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:22:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:22:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:22:04,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:22:04,601 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:22:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:22:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:22:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:22:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:22:04,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:22:04,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:22:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:22:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:22:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:22:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:22:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:22:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:22:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:22:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:22:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:22:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:22:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:22:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:22:04,608 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:22:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:22:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:22:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:22:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:22:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:22:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:22:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:22:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:22:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:22:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:22:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:22:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:22:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:22:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:22:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:22:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:22:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 14:22:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:22:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:22:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:22:04,612 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:22:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:22:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:22:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:22:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:22:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:22:04,613 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:22:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:22:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:22:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:22:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:22:04,614 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:22:04,615 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:22:04,615 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:22:04,615 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:22:04,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:22:04,616 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:22:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:22:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:22:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:22:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:22:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:22:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:22:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:22:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:22:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:22:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:22:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:22:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:22:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:22:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:22:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:22:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:22:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:22:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:22:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:22:05,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:22:05,737 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:22:05,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:22:05 BoogieIcfgContainer [2020-09-25 14:22:05,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:22:05,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:22:05,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:22:05,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:22:05,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:22:03" (1/3) ... [2020-09-25 14:22:05,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48cc3e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:22:05, skipping insertion in model container [2020-09-25 14:22:05,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:22:04" (2/3) ... [2020-09-25 14:22:05,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48cc3e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:22:05, skipping insertion in model container [2020-09-25 14:22:05,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:22:05" (3/3) ... [2020-09-25 14:22:05,756 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-09-25 14:22:05,767 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:22:05,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:22:05,794 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:22:05,822 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:22:05,822 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:22:05,823 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:22:05,823 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:22:05,823 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:22:05,823 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:22:05,823 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:22:05,823 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:22:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-25 14:22:05,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:22:05,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:05,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:05,866 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:05,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:05,872 INFO L82 PathProgramCache]: Analyzing trace with hash 808133404, now seen corresponding path program 1 times [2020-09-25 14:22:05,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:05,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93260649] [2020-09-25 14:22:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:06,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:06,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:07,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:08,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:11,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:11,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:22:11,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:22:11,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:22:11,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:11,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:11,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:22:11,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:22:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 14:22:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 14:22:11,763 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:11,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:11,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:12,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:12,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:12,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:12,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-25 14:22:12,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:12,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:12,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:22:12,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:12,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:12,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:12,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:12,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:12,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:12,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:12,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:12,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:12,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:12,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:12,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:12,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:12,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:12,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:12,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:12,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:12,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:12,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:12,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:12,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:12,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:12,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:12,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:12,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:12,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:12,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:22:12,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:12,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:12,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:12,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:12,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:12,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:12,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:12,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:12,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:12,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:12,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:12,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:12,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:12,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:12,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:12,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:12,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:12,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:22:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:12,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:12,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:12,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:12,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:12,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:12,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:12,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:12,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:12,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:12,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:12,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:12,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:22:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:12,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:12,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:12,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:12,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:12,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:12,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:12,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:12,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:12,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:12,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:12,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:12,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93260649] [2020-09-25 14:22:12,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:12,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:22:12,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215231522] [2020-09-25 14:22:12,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:22:12,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:12,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:22:12,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:22:12,361 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2020-09-25 14:22:12,927 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:14,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:14,736 INFO L93 Difference]: Finished difference Result 595 states and 724 transitions. [2020-09-25 14:22:14,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:22:14,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:22:14,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:14,770 INFO L225 Difference]: With dead ends: 595 [2020-09-25 14:22:14,771 INFO L226 Difference]: Without dead ends: 419 [2020-09-25 14:22:14,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:22:14,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-09-25 14:22:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 350. [2020-09-25 14:22:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 14:22:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 387 transitions. [2020-09-25 14:22:14,918 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 387 transitions. Word has length 142 [2020-09-25 14:22:14,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:14,920 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 387 transitions. [2020-09-25 14:22:14,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:22:14,921 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 387 transitions. [2020-09-25 14:22:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:22:14,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:14,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:14,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:22:14,927 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:14,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:14,927 INFO L82 PathProgramCache]: Analyzing trace with hash -528230044, now seen corresponding path program 1 times [2020-09-25 14:22:14,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:14,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993271207] [2020-09-25 14:22:14,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:15,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:15,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:18,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:19,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:19,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:22:19,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:22:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 14:22:19,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:19,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:22:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:22:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 14:22:19,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:20,351 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:20,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:20,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 14:22:20,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:20,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:20,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:22:20,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:20,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:20,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:20,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:20,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:20,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:20,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:20,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:20,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:22:20,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:20,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:20,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:20,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:22:20,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:20,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:20,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:20,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:20,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:20,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:20,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:20,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:20,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:22:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:22:20,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:22:20,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:22:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:22:20,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:22:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:20,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:20,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:20,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:20,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:20,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:22:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:20,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:20,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:22:20,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:22:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:20,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:20,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:20,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:20,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:20,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:20,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:20,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:20,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:20,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:20,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:22:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:20,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993271207] [2020-09-25 14:22:20,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:20,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:22:20,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968094103] [2020-09-25 14:22:20,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:22:20,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:20,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:22:20,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:22:20,997 INFO L87 Difference]: Start difference. First operand 350 states and 387 transitions. Second operand 6 states. [2020-09-25 14:22:21,521 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:23,073 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:24,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:24,014 INFO L93 Difference]: Finished difference Result 937 states and 1141 transitions. [2020-09-25 14:22:24,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:22:24,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-09-25 14:22:24,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:24,030 INFO L225 Difference]: With dead ends: 937 [2020-09-25 14:22:24,030 INFO L226 Difference]: Without dead ends: 697 [2020-09-25 14:22:24,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:22:24,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-09-25 14:22:24,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 579. [2020-09-25 14:22:24,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-09-25 14:22:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 658 transitions. [2020-09-25 14:22:24,168 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 658 transitions. Word has length 151 [2020-09-25 14:22:24,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:24,169 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 658 transitions. [2020-09-25 14:22:24,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:22:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 658 transitions. [2020-09-25 14:22:24,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 14:22:24,172 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:24,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:24,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:22:24,173 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:24,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:24,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1615445203, now seen corresponding path program 1 times [2020-09-25 14:22:24,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:24,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [846702579] [2020-09-25 14:22:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:24,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:25,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:25,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:28,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 14:22:29,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:22:29,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-09-25 14:22:29,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:22:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:22:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-25 14:22:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:29,599 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:29,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:29,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:29,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:29,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 14:22:29,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:29,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:22:29,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:29,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:29,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:29,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:29,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:29,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:29,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:29,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:29,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:29,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:29,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:29,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:29,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:29,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:29,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:29,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:29,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:29,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:29,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:29,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:29,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:22:29,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:29,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:29,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:29,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:29,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:29,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:29,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:29,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:22:29,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:29,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 14:22:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:29,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:22:29,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:29,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:29,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:29,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:22:29,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:29,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:22:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:29,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:29,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:29,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:22:29,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:22:29,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:29,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:29,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:29,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 14:22:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:29,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:29,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:29,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:29,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:29,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:29,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:29,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:29,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:22:30,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [846702579] [2020-09-25 14:22:30,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:22:30,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:22:30,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605897] [2020-09-25 14:22:30,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:22:30,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:30,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:22:30,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:22:30,071 INFO L87 Difference]: Start difference. First operand 579 states and 658 transitions. Second operand 10 states. [2020-09-25 14:22:30,817 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:31,916 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:32,228 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:32,550 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:32,895 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:22:33,234 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:33,995 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:22:34,295 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:34,639 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:36,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:36,131 INFO L93 Difference]: Finished difference Result 1490 states and 1880 transitions. [2020-09-25 14:22:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:22:36,133 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 14:22:36,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:36,140 INFO L225 Difference]: With dead ends: 1490 [2020-09-25 14:22:36,140 INFO L226 Difference]: Without dead ends: 1021 [2020-09-25 14:22:36,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:22:36,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2020-09-25 14:22:36,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 931. [2020-09-25 14:22:36,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-09-25 14:22:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1124 transitions. [2020-09-25 14:22:36,289 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1124 transitions. Word has length 161 [2020-09-25 14:22:36,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:36,289 INFO L479 AbstractCegarLoop]: Abstraction has 931 states and 1124 transitions. [2020-09-25 14:22:36,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:22:36,290 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1124 transitions. [2020-09-25 14:22:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 14:22:36,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:36,295 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:36,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:22:36,295 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:36,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:36,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1625258647, now seen corresponding path program 1 times [2020-09-25 14:22:36,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:36,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456160551] [2020-09-25 14:22:36,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:36,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:36,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:38,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:38,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 14:22:38,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:22:38,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2177 [2020-09-25 14:22:38,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:38,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:38,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:22:38,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 14:22:38,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:22:38,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:38,828 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:38,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:38,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:38,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:38,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:38,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:38,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 14:22:38,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:38,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:38,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:38,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:38,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:38,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:38,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:38,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:38,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:39,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:39,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:39,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:39,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:39,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:39,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:39,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:39,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:39,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 14:22:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 14:22:39,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 14:22:39,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:22:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 14:22:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:22:39,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 14:22:39,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 14:22:39,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:22:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 14:22:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:22:39,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:22:39,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 14:22:39,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:22:39,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 14:22:39,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:22:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:22:39,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:39,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:22:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:22:39,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:39,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 14:22:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 14:22:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:22:39,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:22:39,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 14:22:39,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:39,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:39,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:39,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 14:22:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:22:39,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:39,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:22:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 14:22:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:22:39,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:22:39,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:39,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:39,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:39,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:39,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 14:22:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:39,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:39,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:39,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-25 14:22:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:39,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:39,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:39,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:39,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:39,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:39,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:39,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 14:22:39,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456160551] [2020-09-25 14:22:39,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:22:39,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 14:22:39,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611859090] [2020-09-25 14:22:39,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:22:39,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:39,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:22:39,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:22:39,529 INFO L87 Difference]: Start difference. First operand 931 states and 1124 transitions. Second operand 11 states. [2020-09-25 14:22:40,809 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:41,114 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:22:41,436 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:22:41,799 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:42,132 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:22:42,427 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:22:43,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:22:43,813 INFO L93 Difference]: Finished difference Result 2059 states and 2664 transitions. [2020-09-25 14:22:43,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:22:43,814 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2020-09-25 14:22:43,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:22:43,823 INFO L225 Difference]: With dead ends: 2059 [2020-09-25 14:22:43,823 INFO L226 Difference]: Without dead ends: 1238 [2020-09-25 14:22:43,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:22:43,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2020-09-25 14:22:43,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 963. [2020-09-25 14:22:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-09-25 14:22:43,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1158 transitions. [2020-09-25 14:22:43,977 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1158 transitions. Word has length 213 [2020-09-25 14:22:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:22:43,978 INFO L479 AbstractCegarLoop]: Abstraction has 963 states and 1158 transitions. [2020-09-25 14:22:43,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:22:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1158 transitions. [2020-09-25 14:22:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 14:22:43,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:22:43,984 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:22:43,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:22:43,985 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:22:43,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:22:43,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1521360857, now seen corresponding path program 1 times [2020-09-25 14:22:43,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:22:43,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550703196] [2020-09-25 14:22:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:22:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:44,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:44,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:44,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 14:22:46,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:22:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1959 [2020-09-25 14:22:46,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 14:22:46,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 14:22:46,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:46,336 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:22:46,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:22:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:22:46,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 14:22:46,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:22:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:46,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:22:46,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:46,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:46,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:22:46,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:22:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:46,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:46,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:22:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:46,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:46,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:46,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:22:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:46,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:46,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 14:22:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 14:22:46,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:22:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 14:22:46,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:22:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:22:46,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 14:22:46,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:22:46,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 14:22:46,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:22:46,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:22:46,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:22:46,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:22:46,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 14:22:46,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:22:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:22:46,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:22:46,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:22:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:22:46,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:22:46,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:22:46,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:22:46,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:22:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:22:46,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:22:46,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 14:22:46,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:46,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 14:22:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:22:46,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:22:46,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:46,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:46,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:46,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:46,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:46,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:46,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:46,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:46,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:46,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:46,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:46,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:46,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:47,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 14:22:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:47,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:47,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:47,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:22:47,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:47,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:22:47,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:47,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:47,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:47,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:22:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:47,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:47,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 14:22:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:47,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:47,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:22:47,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:22:47,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:47,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:47,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:47,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:22:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:47,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:22:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:47,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:47,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:47,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:22:47,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:47,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:47,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:47,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:47,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:47,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:22:47,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:47,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:47,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-25 14:22:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:47,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:47,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:47,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:47,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:47,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:47,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:47,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:47,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 14:22:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:22:47,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:22:47,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:22:47,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:22:47,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:22:47,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:22:47,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:22:47,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:22:47,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:22:47,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:22:47,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:22:47,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:22:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 14:22:47,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550703196] [2020-09-25 14:22:47,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:22:47,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 14:22:47,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887620685] [2020-09-25 14:22:47,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:22:47,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:22:47,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:22:47,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:22:47,154 INFO L87 Difference]: Start difference. First operand 963 states and 1158 transitions. Second operand 11 states. [2020-09-25 14:22:47,938 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:22:48,729 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:22:49,035 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:22:49,359 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188