/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:38:35,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:38:35,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:38:35,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:38:35,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:38:35,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:38:35,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:38:35,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:38:35,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:38:35,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:38:35,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:38:35,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:38:35,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:38:35,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:38:35,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:38:35,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:38:35,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:38:35,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:38:35,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:38:35,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:38:35,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:38:35,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:38:35,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:38:35,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:38:35,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:38:35,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:38:35,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:38:35,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:38:35,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:38:35,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:38:35,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:38:35,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:38:35,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:38:35,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:38:35,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:38:35,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:38:35,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:38:35,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:38:35,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:38:35,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:38:35,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:38:35,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:38:35,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:38:35,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:38:35,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:38:35,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:38:35,905 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:38:35,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:38:35,905 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:38:35,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:38:35,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:38:35,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:38:35,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:38:35,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:38:35,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:38:35,909 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:38:35,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:38:35,910 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:38:35,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:38:35,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:38:35,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:38:35,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:38:35,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:38:35,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:38:35,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:38:35,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:38:35,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:38:35,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:38:35,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:38:35,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:38:35,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:38:35,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:38:36,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:38:36,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:38:36,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:38:36,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:38:36,396 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:38:36,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-24 23:38:36,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04b3d4420/00e9260462ad4fd789b71f66d7d5d9cf/FLAG4a98c6937 [2020-09-24 23:38:37,124 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:38:37,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product35.cil.c [2020-09-24 23:38:37,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04b3d4420/00e9260462ad4fd789b71f66d7d5d9cf/FLAG4a98c6937 [2020-09-24 23:38:37,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04b3d4420/00e9260462ad4fd789b71f66d7d5d9cf [2020-09-24 23:38:37,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:38:37,409 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:38:37,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:38:37,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:38:37,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:38:37,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:38:37" (1/1) ... [2020-09-24 23:38:37,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:37, skipping insertion in model container [2020-09-24 23:38:37,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:38:37" (1/1) ... [2020-09-24 23:38:37,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:38:37,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:38:37,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:38:38,034 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:38:38,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:38:38,149 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:38:38,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38 WrapperNode [2020-09-24 23:38:38,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:38:38,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:38:38,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:38:38,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:38:38,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (1/1) ... [2020-09-24 23:38:38,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (1/1) ... [2020-09-24 23:38:38,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (1/1) ... [2020-09-24 23:38:38,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (1/1) ... [2020-09-24 23:38:38,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (1/1) ... [2020-09-24 23:38:38,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (1/1) ... [2020-09-24 23:38:38,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (1/1) ... [2020-09-24 23:38:38,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:38:38,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:38:38,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:38:38,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:38:38,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:38:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:38:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:38:38,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:38:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:38:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:38:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:38:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:38:38,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:38:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:38:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:38:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:38:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:38:38,347 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:38:38,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:38:38,348 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:38:38,348 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:38:38,348 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:38:38,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:38:38,349 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:38:38,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:38:38,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:38:38,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:38:38,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:38:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:38:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:38:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:38:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:38:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:38:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:38:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:38:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:38:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:38:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:38:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:38:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:38:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:38:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:38:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:38:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:38:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:38:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:38:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:38:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:38:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:38:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:38:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:38:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:38:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:38:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:38:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:38:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:38:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:38:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:38:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:38:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:38:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:38:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:38:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:38:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:38:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:38:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:38:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:38:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:38:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:38:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:38:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:38:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:38:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:38:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:38:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:38:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:38:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:38:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:38:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:38:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:38:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:38:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:38:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:38:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:38:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:38:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:38:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:38:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:38:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:38:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:38:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:38:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:38:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:38:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:38:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:38:39,531 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:38:39,531 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:38:39,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:38:39 BoogieIcfgContainer [2020-09-24 23:38:39,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:38:39,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:38:39,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:38:39,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:38:39,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:38:37" (1/3) ... [2020-09-24 23:38:39,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445489b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:38:39, skipping insertion in model container [2020-09-24 23:38:39,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:38:38" (2/3) ... [2020-09-24 23:38:39,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445489b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:38:39, skipping insertion in model container [2020-09-24 23:38:39,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:38:39" (3/3) ... [2020-09-24 23:38:39,548 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-09-24 23:38:39,560 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:38:39,572 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:38:39,596 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:38:39,631 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:38:39,631 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:38:39,631 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:38:39,632 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:38:39,632 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:38:39,632 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:38:39,632 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:38:39,632 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:38:39,663 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-09-24 23:38:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:38:39,682 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:39,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:38:39,684 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:39,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:39,693 INFO L82 PathProgramCache]: Analyzing trace with hash 808133404, now seen corresponding path program 1 times [2020-09-24 23:38:39,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:39,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110537433] [2020-09-24 23:38:39,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:40,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:40,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:41,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:42,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:45,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:45,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:38:45,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:38:45,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:38:45,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:45,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:38:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:38:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:38:45,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:38:45,566 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:45,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:45,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:45,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:45,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:45,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:45,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-24 23:38:45,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:45,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:45,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:45,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:38:45,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:45,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:45,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:45,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:45,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:45,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:45,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:45,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:45,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:45,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:45,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:45,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:45,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:45,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:45,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:45,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:45,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:38:45,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:45,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:45,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:45,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:46,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:46,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:46,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:38:46,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:46,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:46,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:46,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:46,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:46,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:46,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:38:46,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:46,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:46,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:38:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:46,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:46,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:46,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:46,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:46,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:46,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:46,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:38:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:46,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:46,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:46,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:46,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:46,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:38:46,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:46,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:46,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:46,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:46,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:38:46,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110537433] [2020-09-24 23:38:46,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:46,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:38:46,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577804205] [2020-09-24 23:38:46,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:38:46,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:46,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:38:46,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:38:46,162 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2020-09-24 23:38:46,788 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:38:48,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:48,543 INFO L93 Difference]: Finished difference Result 595 states and 724 transitions. [2020-09-24 23:38:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:38:48,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-24 23:38:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:48,570 INFO L225 Difference]: With dead ends: 595 [2020-09-24 23:38:48,570 INFO L226 Difference]: Without dead ends: 419 [2020-09-24 23:38:48,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:38:48,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-09-24 23:38:48,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 350. [2020-09-24 23:38:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-24 23:38:48,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 387 transitions. [2020-09-24 23:38:48,733 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 387 transitions. Word has length 142 [2020-09-24 23:38:48,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:48,734 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 387 transitions. [2020-09-24 23:38:48,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:38:48,737 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 387 transitions. [2020-09-24 23:38:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-24 23:38:48,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:48,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:38:48,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:38:48,750 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:48,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:48,751 INFO L82 PathProgramCache]: Analyzing trace with hash -528230044, now seen corresponding path program 1 times [2020-09-24 23:38:48,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:48,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260165684] [2020-09-24 23:38:48,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:48,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:49,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:49,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:52,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:53,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:53,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:38:53,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:38:53,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:38:53,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:38:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:38:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 23:38:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,208 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:38:54,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:38:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:38:54,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 23:38:54,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:54,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:54,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:38:54,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:38:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:54,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:54,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:54,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:38:54,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:38:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:54,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:54,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:54,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:54,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:54,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:38:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:54,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:38:54,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:54,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:38:54,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:38:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:54,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:54,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:54,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:54,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:38:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:38:54,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:38:54,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:38:54,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:38:54,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:38:54,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:38:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:38:54,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:38:54,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:38:54,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:38:54,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:38:54,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:38:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:54,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:54,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:54,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:54,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:54,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 23:38:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:54,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:54,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:38:54,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:38:54,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:38:54,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:38:54,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:38:54,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:38:54,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:38:54,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:38:54,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:38:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:38:54,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260165684] [2020-09-24 23:38:54,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:38:54,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:38:54,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107109586] [2020-09-24 23:38:54,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:38:54,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:38:54,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:38:54,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:38:54,651 INFO L87 Difference]: Start difference. First operand 350 states and 387 transitions. Second operand 6 states. [2020-09-24 23:38:55,084 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:38:56,474 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:38:57,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:38:57,515 INFO L93 Difference]: Finished difference Result 937 states and 1141 transitions. [2020-09-24 23:38:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:38:57,517 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-09-24 23:38:57,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:38:57,524 INFO L225 Difference]: With dead ends: 937 [2020-09-24 23:38:57,525 INFO L226 Difference]: Without dead ends: 697 [2020-09-24 23:38:57,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:38:57,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-09-24 23:38:57,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 579. [2020-09-24 23:38:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-09-24 23:38:57,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 658 transitions. [2020-09-24 23:38:57,646 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 658 transitions. Word has length 151 [2020-09-24 23:38:57,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:38:57,647 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 658 transitions. [2020-09-24 23:38:57,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:38:57,647 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 658 transitions. [2020-09-24 23:38:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 23:38:57,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:38:57,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:38:57,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:38:57,650 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:38:57,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:38:57,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1615445203, now seen corresponding path program 1 times [2020-09-24 23:38:57,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:38:57,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511141099] [2020-09-24 23:38:57,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:38:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:38:57,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:58,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:38:59,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:01,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:02,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:02,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 23:39:02,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:02,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 23:39:02,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:39:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:39:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 23:39:02,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:03,074 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:03,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:03,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:03,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:03,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-24 23:39:03,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:39:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:03,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:03,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:03,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:03,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:03,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:03,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:03,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:03,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:03,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:03,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:03,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:03,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:03,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:03,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:03,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:03,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:03,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:03,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:03,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:03,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:03,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:03,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:03,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:03,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:03,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:03,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:03,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:03,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:03,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 23:39:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:03,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:03,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:39:03,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:03,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:03,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:39:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:39:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:03,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 23:39:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:03,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:03,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:03,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:03,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:03,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:03,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:03,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:03,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:39:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:03,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:03,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:03,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:03,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:03,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:03,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:03,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:03,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:03,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:03,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:03,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:03,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511141099] [2020-09-24 23:39:03,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:03,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:39:03,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606535133] [2020-09-24 23:39:03,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:39:03,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:03,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:39:03,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:39:03,528 INFO L87 Difference]: Start difference. First operand 579 states and 658 transitions. Second operand 10 states. [2020-09-24 23:39:04,007 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:05,516 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:05,799 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:06,102 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:06,377 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:06,664 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:07,101 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:07,411 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:07,783 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:39:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:08,770 INFO L93 Difference]: Finished difference Result 707 states and 839 transitions. [2020-09-24 23:39:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:39:08,771 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 23:39:08,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:08,778 INFO L225 Difference]: With dead ends: 707 [2020-09-24 23:39:08,778 INFO L226 Difference]: Without dead ends: 704 [2020-09-24 23:39:08,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:39:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-09-24 23:39:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 579. [2020-09-24 23:39:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-09-24 23:39:08,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 656 transitions. [2020-09-24 23:39:08,857 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 656 transitions. Word has length 161 [2020-09-24 23:39:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:08,858 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 656 transitions. [2020-09-24 23:39:08,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:39:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 656 transitions. [2020-09-24 23:39:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 23:39:08,861 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:08,861 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] [2020-09-24 23:39:08,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:39:08,861 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:08,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash -20316787, now seen corresponding path program 1 times [2020-09-24 23:39:08,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:08,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709738642] [2020-09-24 23:39:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:08,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:09,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:13,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:13,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-24 23:39:13,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:13,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 23:39:13,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:13,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:39:13,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:39:13,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-24 23:39:13,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,316 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:14,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:14,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-24 23:39:14,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:39:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:14,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:14,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:14,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:14,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:14,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:14,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:14,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:39:14,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:14,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:14,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:14,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:14,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:14,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:14,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 23:39:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:39:14,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:14,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 23:39:14,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 23:39:14,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:39:14,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:14,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:14,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:14,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:39:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:39:14,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:14,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:14,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:39:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:39:14,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:14,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:14,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 23:39:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:14,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:39:14,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:14,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:14,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 23:39:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:14,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:14,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:14,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:14,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:14,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:14,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:14,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:14,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:14,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:39:14,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709738642] [2020-09-24 23:39:14,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:14,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:39:14,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379158423] [2020-09-24 23:39:14,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:39:14,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:14,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:39:14,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:39:14,891 INFO L87 Difference]: Start difference. First operand 579 states and 656 transitions. Second operand 9 states. [2020-09-24 23:39:15,432 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:16,575 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:16,890 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:17,221 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:17,586 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:17,900 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:18,700 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:18,991 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:39:20,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:20,418 INFO L93 Difference]: Finished difference Result 1500 states and 1896 transitions. [2020-09-24 23:39:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:39:20,421 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2020-09-24 23:39:20,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:20,433 INFO L225 Difference]: With dead ends: 1500 [2020-09-24 23:39:20,434 INFO L226 Difference]: Without dead ends: 1031 [2020-09-24 23:39:20,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 23:39:20,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-09-24 23:39:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 931. [2020-09-24 23:39:20,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-09-24 23:39:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1122 transitions. [2020-09-24 23:39:20,583 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1122 transitions. Word has length 185 [2020-09-24 23:39:20,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:20,584 INFO L479 AbstractCegarLoop]: Abstraction has 931 states and 1122 transitions. [2020-09-24 23:39:20,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:39:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1122 transitions. [2020-09-24 23:39:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-24 23:39:20,589 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:20,590 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:39:20,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:39:20,591 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:20,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:20,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1154696327, now seen corresponding path program 1 times [2020-09-24 23:39:20,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:20,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292812920] [2020-09-24 23:39:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:20,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:20,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:20,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:22,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-24 23:39:22,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:39:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2045 [2020-09-24 23:39:22,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 23:39:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-24 23:39:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:23,042 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:23,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:23,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:23,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:23,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 23:39:23,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:23,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:23,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:23,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:23,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:23,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:23,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:23,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:23,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:23,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:23,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:23,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:23,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:23,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:23,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:23,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:23,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:23,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:23,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:23,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:23,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:23,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:23,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:23,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:23,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:23,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:23,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:23,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:23,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:23,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:23,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:23,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:23,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:23,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:23,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:23,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 23:39:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:23,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:23,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 23:39:23,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:23,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-24 23:39:23,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:23,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 23:39:23,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:23,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:23,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:23,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking...