/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=BIGGEST --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:10:49,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:10:49,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:10:49,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:10:49,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:10:49,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:10:49,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:10:49,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:10:49,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:10:49,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:10:49,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:10:49,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:10:49,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:10:49,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:10:49,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:10:49,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:10:49,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:10:49,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:10:49,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:10:49,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:10:49,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:10:49,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:10:49,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:10:49,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:10:49,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:10:49,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:10:49,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:10:49,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:10:49,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:10:49,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:10:49,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:10:49,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:10:49,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:10:49,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:10:49,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:10:49,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:10:49,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:10:49,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:10:49,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:10:49,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:10:49,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:10:49,602 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 20:10:49,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:10:49,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:10:49,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:10:49,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:10:49,649 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:10:49,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:10:49,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:10:49,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:10:49,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:10:49,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:10:49,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:10:49,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:10:49,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:10:49,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:10:49,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:10:49,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:10:49,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:10:49,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:10:49,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:10:49,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:10:49,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:10:49,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:10:49,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:10:49,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:10:49,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:10:49,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:10:49,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:10:49,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:10:49,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:10:49,655 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:10:50,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:10:50,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:10:50,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:10:50,123 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:10:50,123 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:10:50,124 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-24 20:10:50,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cffe367f/1fc42bbf7f074ccab5fe28d4d6a2ec0e/FLAGd8bd01439 [2020-09-24 20:10:50,788 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:10:50,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-09-24 20:10:50,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cffe367f/1fc42bbf7f074ccab5fe28d4d6a2ec0e/FLAGd8bd01439 [2020-09-24 20:10:51,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1cffe367f/1fc42bbf7f074ccab5fe28d4d6a2ec0e [2020-09-24 20:10:51,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:10:51,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:10:51,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:10:51,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:10:51,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:10:51,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51, skipping insertion in model container [2020-09-24 20:10:51,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:10:51,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:10:51,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:10:51,645 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:10:51,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:10:51,799 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:10:51,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51 WrapperNode [2020-09-24 20:10:51,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:10:51,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:10:51,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:10:51,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:10:51,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (1/1) ... [2020-09-24 20:10:51,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:10:51,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:10:51,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:10:51,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:10:51,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (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 20:10:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:10:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:10:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:10:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:10:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:10:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:10:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:10:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:10:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:10:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:10:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:10:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:10:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:10:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:10:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:10:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:10:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:10:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:10:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:10:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:10:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:10:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:10:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:10:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:10:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:10:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:10:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:10:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:10:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:10:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:10:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:10:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:10:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:10:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:10:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:10:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:10:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:10:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:10:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:10:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:10:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:10:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:10:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:10:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:10:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:10:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:10:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:10:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:10:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:10:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:10:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:10:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:10:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:10:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:10:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:10:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:10:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:10:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:10:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:10:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:10:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:10:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:10:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:10:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:10:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:10:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:10:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:10:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:10:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:10:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:10:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:10:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:10:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:10:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:10:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:10:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:10:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:10:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:10:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:10:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:10:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:10:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:10:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:10:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:10:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:10:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:10:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:10:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:10:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:10:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:10:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:10:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:10:53,123 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:10:53,124 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:10:53,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:10:53 BoogieIcfgContainer [2020-09-24 20:10:53,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:10:53,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:10:53,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:10:53,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:10:53,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:10:51" (1/3) ... [2020-09-24 20:10:53,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2c7322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:10:53, skipping insertion in model container [2020-09-24 20:10:53,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:51" (2/3) ... [2020-09-24 20:10:53,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2c7322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:10:53, skipping insertion in model container [2020-09-24 20:10:53,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:10:53" (3/3) ... [2020-09-24 20:10:53,141 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-09-24 20:10:53,152 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:10:53,165 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:10:53,188 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:10:53,223 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:10:53,224 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:10:53,224 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:10:53,224 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:10:53,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:10:53,224 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:10:53,225 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:10:53,225 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:10:53,256 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-24 20:10:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:10:53,274 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:10:53,275 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 20:10:53,276 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:10:53,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:10:53,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1842377824, now seen corresponding path program 1 times [2020-09-24 20:10:53,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:10:53,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169409495] [2020-09-24 20:10:53,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:10:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:53,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:55,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:56,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:57,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:58,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:58,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:10:58,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:10:58,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-09-24 20:10:58,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:58,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:10:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 20:10:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:10:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:10:59,369 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:10:59,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:10:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:59,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:59,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:59,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:10:59,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-24 20:10:59,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:59,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 20:10:59,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:59,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:10:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:59,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:59,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:59,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:10:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 20:10:59,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:59,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:59,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:10:59,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:10:59,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:10:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:59,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:59,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:59,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:10:59,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:59,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:10:59,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:10:59,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:59,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:00,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:11:00,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:00,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:00,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:00,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:00,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:00,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:00,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:00,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:00,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:00,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:00,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:00,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:11:00,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:00,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:00,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:00,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:11:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:00,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:00,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:00,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:00,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:00,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:00,260 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 20:11:00,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169409495] [2020-09-24 20:11:00,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:00,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:11:00,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415543999] [2020-09-24 20:11:00,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:11:00,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:00,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:11:00,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:11:00,305 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 9 states. [2020-09-24 20:11:01,061 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:02,193 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:02,540 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:11:02,883 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:03,180 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:03,495 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:04,307 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:04,660 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:05,149 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:06,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:06,016 INFO L93 Difference]: Finished difference Result 599 states and 726 transitions. [2020-09-24 20:11:06,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:11:06,019 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:11:06,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:06,046 INFO L225 Difference]: With dead ends: 599 [2020-09-24 20:11:06,046 INFO L226 Difference]: Without dead ends: 416 [2020-09-24 20:11:06,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:11:06,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-24 20:11:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 347. [2020-09-24 20:11:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-24 20:11:06,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 382 transitions. [2020-09-24 20:11:06,209 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 382 transitions. Word has length 148 [2020-09-24 20:11:06,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:06,220 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 382 transitions. [2020-09-24 20:11:06,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:11:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 382 transitions. [2020-09-24 20:11:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 20:11:06,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:06,236 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] [2020-09-24 20:11:06,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:11:06,237 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:06,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash -2079236146, now seen corresponding path program 1 times [2020-09-24 20:11:06,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:06,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289297387] [2020-09-24 20:11:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:07,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:07,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:11,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:11,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 20:11:11,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:11:11,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-24 20:11:11,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:11:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:11:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-24 20:11:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:11:11,707 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:11,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:11,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:11,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:11,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:11,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-24 20:11:11,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:11,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:11:11,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:12,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:12,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:12,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:12,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:12,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:11:12,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:12,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:12,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:12,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:12,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:12,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:12,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:12,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:12,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:12,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 20:11:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:12,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:12,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:12,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 20:11:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:12,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:11:12,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:12,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,215 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 20:11:12,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289297387] [2020-09-24 20:11:12,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:12,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:11:12,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182127477] [2020-09-24 20:11:12,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:11:12,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:12,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:11:12,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:11:12,223 INFO L87 Difference]: Start difference. First operand 347 states and 382 transitions. Second operand 10 states. [2020-09-24 20:11:12,812 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:14,095 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:14,420 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:14,830 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:15,183 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:15,500 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:16,227 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:16,531 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:16,909 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:17,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:17,964 INFO L93 Difference]: Finished difference Result 837 states and 1023 transitions. [2020-09-24 20:11:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 20:11:17,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-24 20:11:17,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:17,974 INFO L225 Difference]: With dead ends: 837 [2020-09-24 20:11:17,974 INFO L226 Difference]: Without dead ends: 605 [2020-09-24 20:11:17,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:11:17,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-09-24 20:11:18,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 488. [2020-09-24 20:11:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-09-24 20:11:18,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 553 transitions. [2020-09-24 20:11:18,064 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 553 transitions. Word has length 163 [2020-09-24 20:11:18,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:18,065 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 553 transitions. [2020-09-24 20:11:18,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:11:18,065 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 553 transitions. [2020-09-24 20:11:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 20:11:18,068 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:18,069 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 20:11:18,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:11:18,069 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:18,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:18,070 INFO L82 PathProgramCache]: Analyzing trace with hash 221743555, now seen corresponding path program 1 times [2020-09-24 20:11:18,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:18,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600539338] [2020-09-24 20:11:18,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:18,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:18,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:18,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:18,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:19,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:20,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-24 20:11:23,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:11:23,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 20:11:23,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:11:23,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:11:23,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-24 20:11:23,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:23,522 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:23,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:23,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 20:11:23,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:11:23,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:23,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:23,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:23,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:23,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:23,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:11:23,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:23,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:23,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:23,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:23,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:23,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:23,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:23,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:23,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:23,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:11:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 20:11:23,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:11:23,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 20:11:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:11:23,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:23,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:11:23,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:11:23,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 20:11:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:23,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:23,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:23,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:11:23,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:23,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:23,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:23,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 20:11:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:23,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:24,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:24,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:24,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:11:24,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:24,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 20:11:24,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:11:24,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:11:24,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:24,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:24,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:24,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:24,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:11:24,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:11:24,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:11:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:24,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:11:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:24,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:24,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:24,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:11:24,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:24,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:24,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:24,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:24,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:24,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:24,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:24,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:11:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:24,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:24,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:24,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:24,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:24,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:24,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:11:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:24,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:24,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 20:11:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:24,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:24,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:24,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:24,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:24,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:24,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:24,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:24,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:24,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-24 20:11:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:24,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:24,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:24,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:24,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:24,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:24,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:24,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:24,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:24,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:11:24,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600539338] [2020-09-24 20:11:24,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:24,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 20:11:24,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475498590] [2020-09-24 20:11:24,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 20:11:24,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:24,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 20:11:24,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:11:24,308 INFO L87 Difference]: Start difference. First operand 488 states and 553 transitions. Second operand 15 states. [2020-09-24 20:11:24,898 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:26,083 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:26,775 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:27,142 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:27,486 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:11:27,893 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:28,288 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:28,633 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:29,041 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:29,389 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:29,750 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:11:30,208 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:30,632 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:30,987 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:33,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:33,928 INFO L93 Difference]: Finished difference Result 1627 states and 2084 transitions. [2020-09-24 20:11:33,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 20:11:33,929 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 222 [2020-09-24 20:11:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:33,946 INFO L225 Difference]: With dead ends: 1627 [2020-09-24 20:11:33,946 INFO L226 Difference]: Without dead ends: 1254 [2020-09-24 20:11:33,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=460, Invalid=1610, Unknown=0, NotChecked=0, Total=2070 [2020-09-24 20:11:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2020-09-24 20:11:34,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 886. [2020-09-24 20:11:34,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-09-24 20:11:34,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1017 transitions. [2020-09-24 20:11:34,116 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1017 transitions. Word has length 222 [2020-09-24 20:11:34,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:34,117 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1017 transitions. [2020-09-24 20:11:34,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 20:11:34,117 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1017 transitions. [2020-09-24 20:11:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 20:11:34,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:34,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:34,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:11:34,121 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:34,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:34,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1672475787, now seen corresponding path program 1 times [2020-09-24 20:11:34,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:34,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330818674] [2020-09-24 20:11:34,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:34,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:34,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:37,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:37,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 20:11:37,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:37,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3195 [2020-09-24 20:11:37,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:37,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:11:37,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 20:11:37,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 20:11:37,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:37,727 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:37,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:37,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:37,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:37,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:37,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 20:11:37,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:37,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:37,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:37,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:37,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:37,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:37,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:37,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:37,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:37,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:37,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:37,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:37,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:37,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:37,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:11:37,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:37,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:37,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:37,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:37,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:37,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:37,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:37,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:37,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:37,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:37,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:37,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:37,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:37,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:37,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:37,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:37,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:37,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:37,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:37,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:37,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:37,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:37,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:37,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:37,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:37,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:37,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:37,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:37,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:37,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:37,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 20:11:37,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:37,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:37,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:37,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:37,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:37,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:11:37,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:37,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:37,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:37,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:38,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:11:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:38,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:38,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:38,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:11:38,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:38,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 20:11:38,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:11:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:11:38,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:38,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:38,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:38,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:11:38,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:38,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 20:11:38,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:11:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:11:38,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:38,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:11:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:38,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:38,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:38,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:11:38,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:38,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:11:38,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:11:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:38,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:38,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:38,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:11:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:38,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:38,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:38,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:38,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:38,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:38,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:38,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:38,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:11:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:38,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 20:11:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:38,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:38,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:38,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:38,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:38,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:38,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 20:11:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:38,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:38,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:38,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:38,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:38,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:38,395 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 20:11:38,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330818674] [2020-09-24 20:11:38,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:38,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:11:38,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205071255] [2020-09-24 20:11:38,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:11:38,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:38,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:11:38,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:11:38,398 INFO L87 Difference]: Start difference. First operand 886 states and 1017 transitions. Second operand 11 states. [2020-09-24 20:11:38,956 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189