/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:56:25,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:56:25,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:56:25,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:56:25,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:56:25,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:56:25,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:56:25,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:56:25,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:56:25,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:56:25,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:56:25,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:56:25,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:56:25,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:56:25,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:56:25,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:56:25,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:56:25,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:56:25,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:56:25,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:56:25,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:56:25,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:56:25,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:56:25,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:56:25,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:56:25,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:56:25,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:56:25,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:56:25,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:56:25,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:56:25,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:56:25,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:56:25,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:56:25,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:56:25,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:56:25,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:56:25,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:56:25,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:56:25,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:56:25,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:56:25,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:56:25,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:56:25,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:56:25,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:56:25,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:56:25,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:56:25,218 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:56:25,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:56:25,219 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:56:25,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:56:25,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:56:25,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:56:25,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:56:25,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:56:25,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:56:25,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:56:25,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:56:25,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:56:25,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:56:25,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:56:25,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:56:25,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:56:25,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:56:25,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:56:25,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:56:25,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:56:25,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:56:25,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:56:25,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:56:25,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:56:25,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:56:25,224 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:56:25,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:56:25,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:56:25,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:56:25,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:56:25,724 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:56:25,726 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-25 02:56:25,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/107c29657/ad0f254a019141ea97ed4cc1be7eb31f/FLAGdfc6286f4 [2020-09-25 02:56:26,407 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:56:26,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-25 02:56:26,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/107c29657/ad0f254a019141ea97ed4cc1be7eb31f/FLAGdfc6286f4 [2020-09-25 02:56:26,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/107c29657/ad0f254a019141ea97ed4cc1be7eb31f [2020-09-25 02:56:26,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:56:26,710 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:56:26,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:56:26,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:56:26,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:56:26,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:56:26" (1/1) ... [2020-09-25 02:56:26,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:26, skipping insertion in model container [2020-09-25 02:56:26,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:56:26" (1/1) ... [2020-09-25 02:56:26,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:56:26,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:56:27,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:56:27,240 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:56:27,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:56:27,483 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:56:27,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27 WrapperNode [2020-09-25 02:56:27,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:56:27,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:56:27,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:56:27,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:56:27,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (1/1) ... [2020-09-25 02:56:27,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (1/1) ... [2020-09-25 02:56:27,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (1/1) ... [2020-09-25 02:56:27,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (1/1) ... [2020-09-25 02:56:27,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (1/1) ... [2020-09-25 02:56:27,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (1/1) ... [2020-09-25 02:56:27,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (1/1) ... [2020-09-25 02:56:27,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:56:27,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:56:27,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:56:27,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:56:27,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:56:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:56:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:56:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:56:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:56:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:56:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:56:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:56:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:56:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:56:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:56:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:56:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:56:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:56:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:56:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:56:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:56:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:56:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:56:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:56:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:56:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:56:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:56:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:56:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:56:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:56:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:56:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:56:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:56:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:56:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:56:27,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:56:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:56:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:56:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:56:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:56:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:56:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:56:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:56:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:56:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:56:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:56:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:56:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:56:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:56:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:56:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:56:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:56:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:56:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:56:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:56:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:56:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:56:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:56:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:56:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:56:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:56:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:56:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:56:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:56:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:56:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:56:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:56:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:56:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:56:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:56:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:56:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:56:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:56:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:56:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:56:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:56:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:56:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:56:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:56:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:56:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:56:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:56:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:56:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:56:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:56:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:56:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:56:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:56:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:56:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:56:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:56:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:56:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:56:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:56:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:56:28,772 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:56:28,772 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:56:28,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:56:28 BoogieIcfgContainer [2020-09-25 02:56:28,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:56:28,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:56:28,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:56:28,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:56:28,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:56:26" (1/3) ... [2020-09-25 02:56:28,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65731ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:56:28, skipping insertion in model container [2020-09-25 02:56:28,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:56:27" (2/3) ... [2020-09-25 02:56:28,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65731ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:56:28, skipping insertion in model container [2020-09-25 02:56:28,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:56:28" (3/3) ... [2020-09-25 02:56:28,788 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-09-25 02:56:28,796 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:56:28,806 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:56:28,826 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:56:28,854 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:56:28,854 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:56:28,854 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:56:28,855 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:56:28,855 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:56:28,855 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:56:28,855 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:56:28,855 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:56:28,880 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-25 02:56:28,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 02:56:28,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:56:28,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:56:28,898 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:56:28,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:56:28,905 INFO L82 PathProgramCache]: Analyzing trace with hash -636857616, now seen corresponding path program 1 times [2020-09-25 02:56:28,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:56:28,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672442668] [2020-09-25 02:56:28,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:56:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:29,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:29,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:30,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:31,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:32,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:34,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:34,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 02:56:34,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:56:34,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 02:56:34,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:56:34,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:56:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 02:56:34,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:56:34,848 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:56:34,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:56:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:34,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:35,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:35,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:56:35,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:35,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 02:56:35,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:35,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:35,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:56:35,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:35,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:56:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:35,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:35,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:35,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:35,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:56:35,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:35,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:35,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:35,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:35,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:56:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:35,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:35,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:35,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:35,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:35,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:56:35,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:35,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:35,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:35,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:35,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:35,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:56:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:35,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:35,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:35,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:35,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:35,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:56:35,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:35,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:35,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:56:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:35,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:35,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:35,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:35,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:35,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:56:35,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:35,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:35,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:35,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:56:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:35,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:35,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:35,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:56:35,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:35,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:56:35,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:56:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:35,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:56:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:35,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:35,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:35,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:35,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:35,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 02:56:35,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:56:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:35,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:35,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:56:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:35,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:35,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:35,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:35,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:35,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:56:35,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:56:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:35,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:56:35,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672442668] [2020-09-25 02:56:35,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:56:35,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:56:35,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181979227] [2020-09-25 02:56:35,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:56:35,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:56:35,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:56:35,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:56:35,568 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 9 states. [2020-09-25 02:56:36,236 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:56:37,301 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:37,600 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:56:37,995 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:38,396 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:56:38,690 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:39,378 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:56:39,715 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:40,232 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:56:41,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:56:41,145 INFO L93 Difference]: Finished difference Result 567 states and 688 transitions. [2020-09-25 02:56:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:56:41,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 02:56:41,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:56:41,183 INFO L225 Difference]: With dead ends: 567 [2020-09-25 02:56:41,183 INFO L226 Difference]: Without dead ends: 393 [2020-09-25 02:56:41,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 02:56:41,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-25 02:56:41,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 329. [2020-09-25 02:56:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-09-25 02:56:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 362 transitions. [2020-09-25 02:56:41,335 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 362 transitions. Word has length 148 [2020-09-25 02:56:41,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:56:41,338 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 362 transitions. [2020-09-25 02:56:41,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:56:41,346 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 362 transitions. [2020-09-25 02:56:41,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 02:56:41,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:56:41,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:56:41,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:56:41,361 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:56:41,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:56:41,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1721434398, now seen corresponding path program 1 times [2020-09-25 02:56:41,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:56:41,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144120496] [2020-09-25 02:56:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:56:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:41,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:41,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:41,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:43,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:46,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:46,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 02:56:46,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:56:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 02:56:46,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:56:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:56:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-25 02:56:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:46,807 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:56:46,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:56:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:46,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:56:47,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-25 02:56:47,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:56:47,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:47,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:56:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:47,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:47,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:56:47,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:47,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:47,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:56:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:47,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:47,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:56:47,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:47,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 29 [2020-09-25 02:56:47,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:56:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:47,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:47,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:56:47,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:47,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:47,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:56:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:47,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:47,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:56:47,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:47,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:56:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:47,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:56:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:47,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:56:47,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:56:47,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:56:47,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:47,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:56:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:47,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:56:47,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:56:47,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:56:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:47,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 02:56:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:47,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:47,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:56:47,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:47,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:47,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:47,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:56:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:47,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:47,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:47,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:47,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:56:47,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:56:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:47,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:47,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:56:47,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144120496] [2020-09-25 02:56:47,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:56:47,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 02:56:47,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147989484] [2020-09-25 02:56:47,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:56:47,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:56:47,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:56:47,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:56:47,346 INFO L87 Difference]: Start difference. First operand 329 states and 362 transitions. Second operand 10 states. [2020-09-25 02:56:47,919 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:56:49,192 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:49,519 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:56:49,893 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:50,266 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:56:50,590 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:56:51,295 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:56:51,591 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:56:51,969 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:56:52,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:56:52,791 INFO L93 Difference]: Finished difference Result 790 states and 957 transitions. [2020-09-25 02:56:52,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 02:56:52,795 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-25 02:56:52,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:56:52,801 INFO L225 Difference]: With dead ends: 790 [2020-09-25 02:56:52,801 INFO L226 Difference]: Without dead ends: 576 [2020-09-25 02:56:52,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 02:56:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-09-25 02:56:52,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 466. [2020-09-25 02:56:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-09-25 02:56:52,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 527 transitions. [2020-09-25 02:56:52,889 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 527 transitions. Word has length 163 [2020-09-25 02:56:52,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:56:52,890 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 527 transitions. [2020-09-25 02:56:52,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:56:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 527 transitions. [2020-09-25 02:56:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 02:56:52,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:56:52,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:56:52,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:56:52,895 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:56:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:56:52,895 INFO L82 PathProgramCache]: Analyzing trace with hash 306083937, now seen corresponding path program 1 times [2020-09-25 02:56:52,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:56:52,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307873196] [2020-09-25 02:56:52,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:56:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:53,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:53,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:56,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:56,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-25 02:56:56,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:56:56,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3764 [2020-09-25 02:56:56,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:56:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 02:56:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-25 02:56:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:57,113 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:56:57,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:56:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:56:57,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 02:56:57,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:57,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:56:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:57,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:56:57,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:57,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:56:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:57,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:56:57,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:57,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:56:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:57,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:56:57,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:56:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:56:57,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:56:57,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:57,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:56:57,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:56:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:56:57,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:56:57,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:56:57,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:56:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:56:57,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:56:57,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:57,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:56:57,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 02:56:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:56:57,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:56:57,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 02:56:57,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:57,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 02:56:57,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:56:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:56:57,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:56:57,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:57,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:57,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:56:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:56:57,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:56:57,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:57,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:56:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:56:57,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:56:57,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:56:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:56:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 02:56:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:57,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:56:57,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:56:57,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 02:56:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:56:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:56:57,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:56:57,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:56:57,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:56:57,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:56:57,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:56:57,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:56:57,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:56:57,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:56:57,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:56:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:56:57,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307873196] [2020-09-25 02:56:57,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:56:57,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 02:56:57,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226978856] [2020-09-25 02:56:57,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:56:57,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:56:57,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:56:57,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:56:57,708 INFO L87 Difference]: Start difference. First operand 466 states and 527 transitions. Second operand 7 states. [2020-09-25 02:56:58,267 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:00,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:00,687 INFO L93 Difference]: Finished difference Result 1054 states and 1359 transitions. [2020-09-25 02:57:00,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:57:00,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-09-25 02:57:00,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:00,696 INFO L225 Difference]: With dead ends: 1054 [2020-09-25 02:57:00,696 INFO L226 Difference]: Without dead ends: 1051 [2020-09-25 02:57:00,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-25 02:57:00,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2020-09-25 02:57:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 753. [2020-09-25 02:57:00,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-09-25 02:57:00,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 883 transitions. [2020-09-25 02:57:00,859 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 883 transitions. Word has length 196 [2020-09-25 02:57:00,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:00,861 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 883 transitions. [2020-09-25 02:57:00,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:57:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 883 transitions. [2020-09-25 02:57:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-25 02:57:00,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:00,869 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:00,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:57:00,870 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:00,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1884813283, now seen corresponding path program 1 times [2020-09-25 02:57:00,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:00,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114603598] [2020-09-25 02:57:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:00,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:01,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:02,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:02,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:02,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:02,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:05,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:05,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-09-25 02:57:05,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:57:05,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 02:57:05,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:05,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:57:05,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:57:05,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-09-25 02:57:05,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:06,360 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:06,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:06,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:06,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:06,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:06,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:06,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 02:57:06,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:06,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:57:06,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:06,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:06,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:06,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:06,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:06,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:06,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:06,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:06,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:06,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:06,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:06,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:06,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:06,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:06,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:06,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:06,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:06,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:06,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:06,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:06,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:06,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:06,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:06,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:06,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:06,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:06,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:06,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:06,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:06,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:06,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:06,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:06,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:06,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:06,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:06,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:06,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:06,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:06,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:06,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:06,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:06,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:06,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:06,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:06,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:57:06,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:06,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:06,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:06,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:57:06,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:06,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:57:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:06,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:06,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 02:57:07,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:07,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-25 02:57:07,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:57:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:57:07,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 02:57:07,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:07,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:57:07,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:57:07,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 02:57:07,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:07,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 02:57:07,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:07,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:57:07,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:57:07,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:07,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:07,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:07,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:07,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:57:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:57:07,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:07,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:07,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:07,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:07,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:07,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:57:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:07,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:07,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:07,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:07,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:07,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:07,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 02:57:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 02:57:07,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:57:07,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 02:57:07,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:07,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:57:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:07,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:07,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:07,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:07,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:57:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:07,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:57:07,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:07,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:07,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:07,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:07,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-25 02:57:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:07,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:07,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:57:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:57:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:57:07,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:07,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-25 02:57:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:07,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:07,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:07,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:07,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:07,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-25 02:57:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:07,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:07,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:07,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:07,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:07,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:07,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:07,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:07,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 02:57:07,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114603598] [2020-09-25 02:57:07,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:57:07,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 02:57:07,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069777824] [2020-09-25 02:57:07,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:57:07,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:07,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:57:07,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:57:07,487 INFO L87 Difference]: Start difference. First operand 753 states and 883 transitions. Second operand 10 states. [2020-09-25 02:57:08,077 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:10,388 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:11,779 INFO L93 Difference]: Finished difference Result 2731 states and 3599 transitions. [2020-09-25 02:57:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 02:57:11,780 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 237 [2020-09-25 02:57:11,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:11,796 INFO L225 Difference]: With dead ends: 2731 [2020-09-25 02:57:11,796 INFO L226 Difference]: Without dead ends: 2093 [2020-09-25 02:57:11,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=234, Invalid=758, Unknown=0, NotChecked=0, Total=992 [2020-09-25 02:57:11,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2020-09-25 02:57:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1739. [2020-09-25 02:57:12,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1739 states. [2020-09-25 02:57:12,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2071 transitions. [2020-09-25 02:57:12,045 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2071 transitions. Word has length 237 [2020-09-25 02:57:12,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:12,046 INFO L479 AbstractCegarLoop]: Abstraction has 1739 states and 2071 transitions. [2020-09-25 02:57:12,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:57:12,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2071 transitions. [2020-09-25 02:57:12,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-09-25 02:57:12,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:12,058 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 02:57:12,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:57:12,059 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:12,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1342750534, now seen corresponding path program 1 times [2020-09-25 02:57:12,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:12,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737739089] [2020-09-25 02:57:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:12,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:12,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:12,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:12,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:12,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:13,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking...