/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=SHALLOWEST --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_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:33:48,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:33:48,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:33:49,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:33:49,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:33:49,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:33:49,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:33:49,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:33:49,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:33:49,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:33:49,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:33:49,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:33:49,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:33:49,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:33:49,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:33:49,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:33:49,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:33:49,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:33:49,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:33:49,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:33:49,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:33:49,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:33:49,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:33:49,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:33:49,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:33:49,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:33:49,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:33:49,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:33:49,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:33:49,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:33:49,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:33:49,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:33:49,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:33:49,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:33:49,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:33:49,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:33:49,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:33:49,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:33:49,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:33:49,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:33:49,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:33:49,046 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 [2020-09-24 23:33:49,073 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:33:49,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:33:49,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:33:49,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:33:49,075 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:33:49,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:33:49,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:33:49,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:33:49,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:33:49,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:33:49,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:33:49,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:33:49,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:33:49,077 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:33:49,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:33:49,077 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:33:49,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:33:49,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:33:49,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:33:49,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:33:49,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:33:49,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:33:49,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:33:49,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:33:49,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:33:49,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:33:49,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:33:49,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:33:49,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:33:49,080 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:33:49,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:33:49,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:33:49,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:33:49,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:33:49,599 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:33:49,600 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-24 23:33:49,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04f2f1894/0df0f53a78884c9a84aebdd7ba3c4739/FLAGaef51f176 [2020-09-24 23:33:50,306 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:33:50,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-24 23:33:50,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04f2f1894/0df0f53a78884c9a84aebdd7ba3c4739/FLAGaef51f176 [2020-09-24 23:33:50,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04f2f1894/0df0f53a78884c9a84aebdd7ba3c4739 [2020-09-24 23:33:50,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:33:50,596 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:33:50,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:33:50,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:33:50,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:33:50,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:33:50" (1/1) ... [2020-09-24 23:33:50,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afcb89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:50, skipping insertion in model container [2020-09-24 23:33:50,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:33:50" (1/1) ... [2020-09-24 23:33:50,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:33:50,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:33:51,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:33:51,093 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:33:51,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:33:51,348 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:33:51,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51 WrapperNode [2020-09-24 23:33:51,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:33:51,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:33:51,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:33:51,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:33:51,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (1/1) ... [2020-09-24 23:33:51,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (1/1) ... [2020-09-24 23:33:51,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (1/1) ... [2020-09-24 23:33:51,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (1/1) ... [2020-09-24 23:33:51,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (1/1) ... [2020-09-24 23:33:51,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (1/1) ... [2020-09-24 23:33:51,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (1/1) ... [2020-09-24 23:33:51,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:33:51,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:33:51,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:33:51,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:33:51,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (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 [2020-09-24 23:33:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:33:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:33:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:33:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:33:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:33:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:33:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:33:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:33:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:33:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:33:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:33:51,589 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:33:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:33:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:33:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:33:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:33:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:33:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:33:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:33:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:33:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:33:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:33:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:33:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:33:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:33:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:33:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:33:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:33:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:33:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:33:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:33:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:33:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:33:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:33:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:33:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:33:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:33:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:33:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:33:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:33:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:33:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:33:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:33:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:33:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:33:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:33:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:33:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:33:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:33:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:33:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:33:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:33:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:33:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 23:33:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:33:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:33:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:33:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:33:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:33:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:33:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:33:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:33:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:33:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:33:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:33:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:33:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:33:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 23:33:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:33:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:33:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:33:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:33:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:33:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:33:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:33:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:33:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:33:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:33:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:33:52,789 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:33:52,789 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:33:52,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:33:52 BoogieIcfgContainer [2020-09-24 23:33:52,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:33:52,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:33:52,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:33:52,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:33:52,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:33:50" (1/3) ... [2020-09-24 23:33:52,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a4f81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:33:52, skipping insertion in model container [2020-09-24 23:33:52,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:33:51" (2/3) ... [2020-09-24 23:33:52,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a4f81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:33:52, skipping insertion in model container [2020-09-24 23:33:52,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:33:52" (3/3) ... [2020-09-24 23:33:52,808 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-09-24 23:33:52,819 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:33:52,831 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:33:52,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:33:52,892 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:33:52,893 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:33:52,893 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:33:52,893 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:33:52,893 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:33:52,893 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:33:52,894 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:33:52,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:33:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-24 23:33:52,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:33:52,944 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:33:52,946 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] [2020-09-24 23:33:52,946 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:33:52,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:33:52,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1778587784, now seen corresponding path program 1 times [2020-09-24 23:33:52,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:33:52,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694855759] [2020-09-24 23:33:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:33:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:53,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:53,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:54,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:55,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:56,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:58,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:58,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 23:33:58,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:33:58,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 23:33:58,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:58,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:58,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:33:58,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 23:33:58,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:33:58,765 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:33:58,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:33:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:58,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:59,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:59,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:33:59,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:59,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-24 23:33:59,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:59,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:59,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:33:59,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:33:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:59,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:59,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:59,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:59,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:59,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:33:59,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:59,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:59,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:59,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:33:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:59,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:59,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:59,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:59,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:33:59,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:59,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:59,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:33:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:59,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:59,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:59,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:59,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:59,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:33:59,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:59,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:59,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:33:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:59,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:33:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:59,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:59,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:59,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:33:59,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:59,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:33:59,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:59,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:59,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:33:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:59,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:33:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:59,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:59,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:33:59,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:59,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:33:59,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:59,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:33:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:33:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:33:59,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:59,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:33:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:59,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:59,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:59,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:59,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:59,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 23:33:59,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:59,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:33:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:33:59,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:33:59,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:33:59,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:33:59,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:33:59,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:33:59,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:33:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:33:59,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:33:59,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:33:59,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:33:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:33:59,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694855759] [2020-09-24 23:33:59,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:33:59,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:33:59,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042779684] [2020-09-24 23:33:59,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:33:59,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:33:59,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:33:59,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:33:59,460 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 5 states. [2020-09-24 23:34:00,052 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:01,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:34:01,215 INFO L93 Difference]: Finished difference Result 500 states and 593 transitions. [2020-09-24 23:34:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:34:01,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 23:34:01,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:34:01,257 INFO L225 Difference]: With dead ends: 500 [2020-09-24 23:34:01,258 INFO L226 Difference]: Without dead ends: 317 [2020-09-24 23:34:01,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:34:01,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-24 23:34:01,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 268. [2020-09-24 23:34:01,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 23:34:01,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 292 transitions. [2020-09-24 23:34:01,393 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 292 transitions. Word has length 148 [2020-09-24 23:34:01,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:34:01,395 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 292 transitions. [2020-09-24 23:34:01,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:34:01,395 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 292 transitions. [2020-09-24 23:34:01,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 23:34:01,405 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:34:01,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:34:01,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:34:01,406 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:34:01,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:34:01,407 INFO L82 PathProgramCache]: Analyzing trace with hash -2042254420, now seen corresponding path program 1 times [2020-09-24 23:34:01,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:34:01,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087150634] [2020-09-24 23:34:01,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:34:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:01,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:01,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:03,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:04,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:05,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:06,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:06,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 23:34:06,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 23:34:06,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 23:34:06,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:06,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 23:34:06,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:34:06,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-24 23:34:06,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:06,901 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:34:06,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:34:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:06,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:34:07,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-24 23:34:07,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:34:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:07,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:34:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:07,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:07,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:07,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:34:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:07,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:07,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:07,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:07,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:34:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:07,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:34:07,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:07,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:34:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:07,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:07,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:07,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:07,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:34:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:07,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:07,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:34:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:07,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 23:34:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:34:07,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:34:07,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 23:34:07,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:34:07,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:34:07,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:34:07,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:07,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:34:07,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:34:07,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:34:07,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:34:07,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:34:07,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:07,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:07,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:07,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:07,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:07,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 23:34:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:07,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:07,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:07,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:07,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:07,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 23:34:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:07,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:07,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:07,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:07,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:34:07,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:34:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:07,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:34:07,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087150634] [2020-09-24 23:34:07,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:34:07,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:34:07,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347818027] [2020-09-24 23:34:07,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:34:07,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:34:07,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:34:07,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:34:07,439 INFO L87 Difference]: Start difference. First operand 268 states and 292 transitions. Second operand 10 states. [2020-09-24 23:34:07,986 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:09,645 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:09,911 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:34:10,260 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:34:10,905 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:34:11,532 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 23:34:11,902 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:34:12,244 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 23:34:12,537 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:34:13,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:34:13,353 INFO L93 Difference]: Finished difference Result 609 states and 745 transitions. [2020-09-24 23:34:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:34:13,354 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-24 23:34:13,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:34:13,360 INFO L225 Difference]: With dead ends: 609 [2020-09-24 23:34:13,360 INFO L226 Difference]: Without dead ends: 456 [2020-09-24 23:34:13,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:34:13,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-24 23:34:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 372. [2020-09-24 23:34:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-09-24 23:34:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 420 transitions. [2020-09-24 23:34:13,434 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 420 transitions. Word has length 171 [2020-09-24 23:34:13,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:34:13,435 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 420 transitions. [2020-09-24 23:34:13,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:34:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 420 transitions. [2020-09-24 23:34:13,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-24 23:34:13,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:34:13,439 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:34:13,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:34:13,440 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:34:13,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:34:13,440 INFO L82 PathProgramCache]: Analyzing trace with hash 312617414, now seen corresponding path program 1 times [2020-09-24 23:34:13,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:34:13,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028897230] [2020-09-24 23:34:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:34:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:14,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:18,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:18,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-24 23:34:18,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:34:18,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 23:34:18,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:34:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:34:18,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-24 23:34:18,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:18,899 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:34:18,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:34:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:18,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:19,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:19,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:34:19,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:19,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 23:34:19,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:19,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:19,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:19,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:34:19,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:19,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:34:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:19,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:19,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:19,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:19,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:19,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:19,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:19,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:19,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:19,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:19,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:19,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:34:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:19,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:19,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:19,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:19,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:19,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:19,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:19,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:34:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:19,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:19,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:19,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:19,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:19,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:34:19,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:19,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:19,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:34:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:19,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:19,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:19,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:19,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:19,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:19,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:34:19,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:19,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:34:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:19,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:19,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:19,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:19,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:19,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:19,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:19,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:34:19,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:19,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 23:34:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:19,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:19,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:19,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 23:34:20,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:34:20,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 917 [2020-09-24 23:34:20,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:34:20,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 23:34:20,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:20,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 23:34:20,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:34:20,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:20,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:34:20,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:20,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:34:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:34:20,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:20,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:34:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 23:34:20,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:34:20,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:34:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:34:20,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:20,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:34:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:20,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:20,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:20,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:20,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 23:34:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:20,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:20,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 23:34:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:20,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:34:20,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:34:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 23:34:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:20,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:20,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:20,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:20,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:20,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:20,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:34:20,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:20,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:34:20,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028897230] [2020-09-24 23:34:20,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:34:20,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:34:20,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188412220] [2020-09-24 23:34:20,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:34:20,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:34:20,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:34:20,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:34:20,524 INFO L87 Difference]: Start difference. First operand 372 states and 420 transitions. Second operand 10 states. [2020-09-24 23:34:21,090 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:22,879 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 23:34:23,514 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 23:34:24,069 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:34:24,448 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:34:25,056 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:34:25,405 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:34:25,723 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:34:26,204 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:34:27,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:34:27,715 INFO L93 Difference]: Finished difference Result 992 states and 1247 transitions. [2020-09-24 23:34:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 23:34:27,715 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2020-09-24 23:34:27,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:34:27,722 INFO L225 Difference]: With dead ends: 992 [2020-09-24 23:34:27,723 INFO L226 Difference]: Without dead ends: 701 [2020-09-24 23:34:27,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2020-09-24 23:34:27,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-09-24 23:34:27,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 578. [2020-09-24 23:34:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-09-24 23:34:27,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 657 transitions. [2020-09-24 23:34:27,822 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 657 transitions. Word has length 218 [2020-09-24 23:34:27,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:34:27,823 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 657 transitions. [2020-09-24 23:34:27,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:34:27,824 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 657 transitions. [2020-09-24 23:34:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-24 23:34:27,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:34:27,827 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:34:27,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:34:27,828 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:34:27,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:34:27,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1401248748, now seen corresponding path program 1 times [2020-09-24 23:34:27,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:34:27,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [704071021] [2020-09-24 23:34:27,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:34:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:27,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:28,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:32,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:32,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-24 23:34:32,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:34:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:34:32,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:34:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 23:34:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 23:34:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:33,228 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:34:33,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:34:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:34:33,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 23:34:33,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:33,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:33,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:34:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:33,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:33,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:33,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:34:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:33,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:33,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:33,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:33,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:33,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:34:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:33,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:33,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:33,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:33,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:34:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:34:33,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:33,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:33,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:33,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:34:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:33,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:34:33,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 23:34:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:34:33,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 23:34:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:34:33,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:34:33,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:34:33,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:33,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:34:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 23:34:33,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:33,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 23:34:33,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:33,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:34:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:33,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 23:34:33,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:34:33,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-24 23:34:33,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:33,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:33,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:33,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:34:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:34:33,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:34:33,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:33,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:34:33,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:34:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:33,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:33,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:34:33,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:33,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:33,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:33,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:33,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:33,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:34:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:33,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:34,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:34,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 23:34:34,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:34,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:34:34,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:34:34,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:34:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:34,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:34,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:34,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:34:34,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:34:34,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:34,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:34,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:34:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:34,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:34,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:34,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:34,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:34,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:34:34,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:34,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:34,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:34,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:34,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:34,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 23:34:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:34,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:34,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:34,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:34:34,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:34,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:34:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:34:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:34,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 23:34:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:34,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:34,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:34,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:34,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:34,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:34,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:34,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:34,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:34,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:34,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:34,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-24 23:34:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:34,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:34,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:34:34,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:34:34,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:34:34,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:34:34,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:34:34,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:34:34,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:34:34,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:34:34,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:34:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:34:34,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [704071021] [2020-09-24 23:34:34,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:34:34,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:34:34,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788716976] [2020-09-24 23:34:34,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:34:34,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:34:34,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:34:34,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:34:34,238 INFO L87 Difference]: Start difference. First operand 578 states and 657 transitions. Second operand 7 states. [2020-09-24 23:34:34,947 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:34:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:34:37,839 INFO L93 Difference]: Finished difference Result 1268 states and 1609 transitions. [2020-09-24 23:34:37,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:34:37,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2020-09-24 23:34:37,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:34:37,851 INFO L225 Difference]: With dead ends: 1268 [2020-09-24 23:34:37,851 INFO L226 Difference]: Without dead ends: 1265 [2020-09-24 23:34:37,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-24 23:34:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-09-24 23:34:37,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 953. [2020-09-24 23:34:37,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2020-09-24 23:34:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1103 transitions. [2020-09-24 23:34:38,000 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1103 transitions. Word has length 223 [2020-09-24 23:34:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:34:38,001 INFO L479 AbstractCegarLoop]: Abstraction has 953 states and 1103 transitions. [2020-09-24 23:34:38,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:34:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1103 transitions. [2020-09-24 23:34:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-24 23:34:38,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:34:38,013 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:34:38,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:34:38,014 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:34:38,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:34:38,014 INFO L82 PathProgramCache]: Analyzing trace with hash 408290831, now seen corresponding path program 1 times [2020-09-24 23:34:38,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:34:38,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997446955] [2020-09-24 23:34:38,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:34:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:34:38,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:38,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:34:38,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking...