/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:06:30,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:06:30,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:06:30,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:06:30,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:06:30,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:06:30,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:06:30,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:06:30,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:06:30,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:06:30,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:06:30,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:06:30,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:06:30,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:06:30,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:06:30,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:06:30,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:06:30,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:06:30,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:06:30,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:06:30,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:06:30,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:06:30,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:06:30,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:06:30,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:06:30,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:06:30,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:06:30,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:06:30,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:06:30,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:06:30,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:06:30,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:06:30,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:06:30,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:06:30,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:06:30,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:06:30,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:06:30,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:06:30,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:06:30,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:06:30,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:06:30,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:06:30,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:06:30,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:06:30,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:06:30,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:06:30,754 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:06:30,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:06:30,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:06:30,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:06:30,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:06:30,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:06:30,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:06:30,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:06:30,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:06:30,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:06:30,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:06:30,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:06:30,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:06:30,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:06:30,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:06:30,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:06:30,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:06:30,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:06:30,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:06:30,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:06:30,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:06:30,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:06:30,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:06:30,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:06:30,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:06:30,761 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:06:31,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:06:31,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:06:31,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:06:31,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:06:31,221 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:06:31,222 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product43.cil.c [2020-09-24 19:06:31,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f7bacb0f/bca0a5a11b0941559f2932a044d9688e/FLAGe1fe4d3b9 [2020-09-24 19:06:31,939 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:06:31,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product43.cil.c [2020-09-24 19:06:31,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f7bacb0f/bca0a5a11b0941559f2932a044d9688e/FLAGe1fe4d3b9 [2020-09-24 19:06:32,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f7bacb0f/bca0a5a11b0941559f2932a044d9688e [2020-09-24 19:06:32,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:06:32,240 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:06:32,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:06:32,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:06:32,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:06:32,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:32, skipping insertion in model container [2020-09-24 19:06:32,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:06:32" (1/1) ... [2020-09-24 19:06:32,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:06:32,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:06:32,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:06:32,828 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:06:32,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:06:33,016 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:06:33,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33 WrapperNode [2020-09-24 19:06:33,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:06:33,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:06:33,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:06:33,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:06:33,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (1/1) ... [2020-09-24 19:06:33,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (1/1) ... [2020-09-24 19:06:33,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (1/1) ... [2020-09-24 19:06:33,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (1/1) ... [2020-09-24 19:06:33,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (1/1) ... [2020-09-24 19:06:33,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (1/1) ... [2020-09-24 19:06:33,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (1/1) ... [2020-09-24 19:06:33,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:06:33,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:06:33,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:06:33,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:06:33,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:06:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:06:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:06:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:06:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:06:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:06:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:06:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:06:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:06:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:06:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:06:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:06:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:06:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:06:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:06:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:06:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:06:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:06:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:06:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:06:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:06:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:06:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:06:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:06:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:06:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:06:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:06:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:06:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:06:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:06:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:06:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:06:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:06:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:06:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:06:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:06:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:06:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:06:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:06:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:06:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:06:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:06:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:06:33,236 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:06:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:06:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:06:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:06:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:06:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:06:33,237 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:06:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:06:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:06:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:06:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:06:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:06:33,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:06:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:06:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:06:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:06:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:06:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:06:33,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:06:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:06:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:06:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:06:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:06:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:06:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:06:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:06:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:06:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:06:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:06:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:06:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:06:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:06:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:06:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:06:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:06:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:06:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:06:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:06:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:06:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:06:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:06:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:06:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:06:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:06:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:06:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:06:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:06:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:06:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:06:33,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:06:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:06:33,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:06:34,363 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:06:34,364 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:06:34,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:06:34 BoogieIcfgContainer [2020-09-24 19:06:34,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:06:34,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:06:34,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:06:34,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:06:34,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:06:32" (1/3) ... [2020-09-24 19:06:34,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa9b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:06:34, skipping insertion in model container [2020-09-24 19:06:34,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:06:33" (2/3) ... [2020-09-24 19:06:34,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa9b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:06:34, skipping insertion in model container [2020-09-24 19:06:34,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:06:34" (3/3) ... [2020-09-24 19:06:34,382 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2020-09-24 19:06:34,394 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:06:34,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:06:34,430 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:06:34,464 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:06:34,464 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:06:34,465 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:06:34,465 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:06:34,465 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:06:34,465 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:06:34,465 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:06:34,465 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:06:34,495 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-09-24 19:06:34,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 19:06:34,514 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:34,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:34,516 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:34,524 INFO L82 PathProgramCache]: Analyzing trace with hash 712153127, now seen corresponding path program 1 times [2020-09-24 19:06:34,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:34,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383206480] [2020-09-24 19:06:34,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:34,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:35,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:35,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:35,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:06:35,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:35,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-09-24 19:06:35,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:35,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:35,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:06:35,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:35,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:06:36,274 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:36,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:36,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-24 19:06:36,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:36,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:36,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:36,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:36,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:36,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:36,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:36,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:36,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:36,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:36,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:06:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:36,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:36,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:06:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:36,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:36,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:36,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:36,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:36,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:36,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383206480] [2020-09-24 19:06:36,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:36,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:06:36,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313577542] [2020-09-24 19:06:36,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:06:36,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:36,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:06:36,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:06:36,737 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 4 states. [2020-09-24 19:06:38,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:38,189 INFO L93 Difference]: Finished difference Result 489 states and 577 transitions. [2020-09-24 19:06:38,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:06:38,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 19:06:38,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:38,222 INFO L225 Difference]: With dead ends: 489 [2020-09-24 19:06:38,223 INFO L226 Difference]: Without dead ends: 312 [2020-09-24 19:06:38,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:06:38,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-24 19:06:38,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 262. [2020-09-24 19:06:38,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-24 19:06:38,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2020-09-24 19:06:38,387 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 148 [2020-09-24 19:06:38,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:38,389 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2020-09-24 19:06:38,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:06:38,389 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2020-09-24 19:06:38,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 19:06:38,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:38,395 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] [2020-09-24 19:06:38,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:06:38,395 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:38,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:38,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1114292978, now seen corresponding path program 1 times [2020-09-24 19:06:38,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:38,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667356620] [2020-09-24 19:06:38,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:38,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:38,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 19:06:39,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:39,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-24 19:06:39,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:06:39,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:06:39,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:39,842 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:39,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:39,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:39,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:39,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:39,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:39,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 19:06:39,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:39,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:40,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:40,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:40,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:40,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:40,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:40,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:40,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:40,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:40,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:40,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:40,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:40,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:40,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:40,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:40,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:40,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:40,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:40,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:40,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:40,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:40,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:40,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:40,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:40,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:40,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:40,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:40,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:40,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:40,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:40,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:40,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:40,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:40,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:40,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:40,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:40,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:40,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:40,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:40,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:40,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:40,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:40,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:40,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:40,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:40,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:40,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:40,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:40,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 19:06:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:40,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:40,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:40,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:40,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:40,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:40,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:40,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:40,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:06:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:40,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:40,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:40,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:40,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:40,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:40,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:40,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667356620] [2020-09-24 19:06:40,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:40,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:06:40,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544830565] [2020-09-24 19:06:40,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:06:40,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:40,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:06:40,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:06:40,155 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand 5 states. [2020-09-24 19:06:41,146 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:42,141 INFO L93 Difference]: Finished difference Result 409 states and 462 transitions. [2020-09-24 19:06:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:06:42,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 19:06:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:42,149 INFO L225 Difference]: With dead ends: 409 [2020-09-24 19:06:42,149 INFO L226 Difference]: Without dead ends: 301 [2020-09-24 19:06:42,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:06:42,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-24 19:06:42,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 252. [2020-09-24 19:06:42,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-09-24 19:06:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 271 transitions. [2020-09-24 19:06:42,210 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 271 transitions. Word has length 149 [2020-09-24 19:06:42,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:42,210 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 271 transitions. [2020-09-24 19:06:42,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:06:42,211 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 271 transitions. [2020-09-24 19:06:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 19:06:42,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:42,214 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] [2020-09-24 19:06:42,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:06:42,215 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:42,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:42,215 INFO L82 PathProgramCache]: Analyzing trace with hash 185312608, now seen corresponding path program 1 times [2020-09-24 19:06:42,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:42,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669370644] [2020-09-24 19:06:42,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:42,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 19:06:43,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:06:43,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-09-24 19:06:43,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:06:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 19:06:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:06:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:43,714 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:43,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:43,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:43,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:43,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:43,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 19:06:43,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:43,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:44,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:44,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:44,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:44,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:44,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:44,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:44,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:44,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:44,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:44,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:44,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:44,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:44,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:44,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:44,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:44,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:44,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:44,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:44,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:44,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:44,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:44,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:44,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:44,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:44,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:44,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:44,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:44,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:44,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:44,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:44,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:44,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:44,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:44,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:44,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:44,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:44,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:44,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:44,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:44,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:44,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:44,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:44,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:44,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:44,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:44,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:44,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:44,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:44,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:44,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:06:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:44,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:44,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:44,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:44,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:44,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:06:44,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:44,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:06:44,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:44,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:44,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:44,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 19:06:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:44,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:44,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:44,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:44,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:44,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:06:44,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:44,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:44,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:44,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:44,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:44,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:06:44,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669370644] [2020-09-24 19:06:44,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:44,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:06:44,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903410470] [2020-09-24 19:06:44,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:06:44,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:44,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:06:44,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:06:44,161 INFO L87 Difference]: Start difference. First operand 252 states and 271 transitions. Second operand 9 states. [2020-09-24 19:06:44,617 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:45,753 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:46,116 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:06:46,449 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:46,827 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:06:47,134 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:48,048 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:06:48,356 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:06:48,711 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:49,199 INFO L93 Difference]: Finished difference Result 515 states and 604 transitions. [2020-09-24 19:06:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:06:49,200 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-24 19:06:49,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:49,204 INFO L225 Difference]: With dead ends: 515 [2020-09-24 19:06:49,204 INFO L226 Difference]: Without dead ends: 378 [2020-09-24 19:06:49,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 19:06:49,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-09-24 19:06:49,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 326. [2020-09-24 19:06:49,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-09-24 19:06:49,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 357 transitions. [2020-09-24 19:06:49,252 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 357 transitions. Word has length 158 [2020-09-24 19:06:49,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:49,252 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 357 transitions. [2020-09-24 19:06:49,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:06:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 357 transitions. [2020-09-24 19:06:49,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 19:06:49,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:49,257 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:49,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:06:49,258 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:49,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:49,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1731960441, now seen corresponding path program 1 times [2020-09-24 19:06:49,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:49,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393200639] [2020-09-24 19:06:49,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:49,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:49,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:50,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 19:06:50,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:06:50,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-09-24 19:06:50,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:06:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-24 19:06:50,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:06:50,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:50,757 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:50,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:50,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:50,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:50,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:50,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 19:06:50,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:50,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:50,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:50,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:50,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:50,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:50,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:50,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:50,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:50,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:50,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:50,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:50,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:50,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:50,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:50,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:50,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:50,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:50,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:50,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:50,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:50,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:50,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:50,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:50,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:50,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:50,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:50,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:50,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:50,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:50,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:50,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:50,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:50,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:50,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:50,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:50,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:50,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:50,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:50,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:06:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:06:51,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 19:06:51,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:06:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:06:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:06:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:51,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:06:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:06:51,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:06:51,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:06:51,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:06:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:06:51,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:51,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:06:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:06:51,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:06:51,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:06:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:06:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:06:51,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:06:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:51,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:51,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:06:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:51,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:06:51,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 19:06:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:51,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:51,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 19:06:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:51,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:51,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:51,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:51,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:51,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:51,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:51,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:51,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:51,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:06:51,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393200639] [2020-09-24 19:06:51,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:51,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:06:51,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014382177] [2020-09-24 19:06:51,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:06:51,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:51,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:06:51,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:06:51,379 INFO L87 Difference]: Start difference. First operand 326 states and 357 transitions. Second operand 10 states. [2020-09-24 19:06:52,858 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:53,193 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:53,549 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:06:53,888 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:54,236 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:54,538 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:06:55,365 INFO L93 Difference]: Finished difference Result 622 states and 737 transitions. [2020-09-24 19:06:55,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:06:55,366 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2020-09-24 19:06:55,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:06:55,370 INFO L225 Difference]: With dead ends: 622 [2020-09-24 19:06:55,370 INFO L226 Difference]: Without dead ends: 411 [2020-09-24 19:06:55,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:06:55,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-24 19:06:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 340. [2020-09-24 19:06:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-24 19:06:55,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 372 transitions. [2020-09-24 19:06:55,419 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 372 transitions. Word has length 213 [2020-09-24 19:06:55,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:06:55,420 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 372 transitions. [2020-09-24 19:06:55,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:06:55,420 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 372 transitions. [2020-09-24 19:06:55,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 19:06:55,424 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:06:55,424 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:06:55,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:06:55,424 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:06:55,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:06:55,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1123207463, now seen corresponding path program 1 times [2020-09-24 19:06:55,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:06:55,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417109980] [2020-09-24 19:06:55,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:06:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:55,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:56,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:56,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:56,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:56,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 19:06:56,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:06:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-24 19:06:56,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 19:06:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:06:56,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:06:56,862 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:06:56,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:06:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:56,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:56,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:56,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:06:56,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:56,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 19:06:56,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:56,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:06:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:57,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:06:57,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:06:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:57,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:06:57,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:06:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:57,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:57,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:06:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:06:57,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:57,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:06:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:57,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:57,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:06:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:06:57,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:06:57,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:06:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:06:57,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:06:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:06:57,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:06:57,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:06:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:06:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:06:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:06:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:06:57,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:06:57,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:06:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:06:57,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:06:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:06:57,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:06:57,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:06:57,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:06:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:06:57,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:57,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:06:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:57,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:57,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:06:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:06:57,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:06:57,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:06:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 19:06:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:57,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:57,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 19:06:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:06:57,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:06:57,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:06:57,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:06:57,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:06:57,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:06:57,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:06:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:06:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:06:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:06:57,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:06:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:06:57,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417109980] [2020-09-24 19:06:57,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:06:57,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:06:57,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184404639] [2020-09-24 19:06:57,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:06:57,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:06:57,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:06:57,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:06:57,367 INFO L87 Difference]: Start difference. First operand 340 states and 372 transitions. Second operand 9 states. [2020-09-24 19:06:58,653 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:06:58,971 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:06:59,317 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:06:59,644 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:06:59,953 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:00,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:00,914 INFO L93 Difference]: Finished difference Result 645 states and 760 transitions. [2020-09-24 19:07:00,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:07:00,921 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 213 [2020-09-24 19:07:00,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:00,927 INFO L225 Difference]: With dead ends: 645 [2020-09-24 19:07:00,927 INFO L226 Difference]: Without dead ends: 420 [2020-09-24 19:07:00,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:07:00,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-09-24 19:07:00,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 346. [2020-09-24 19:07:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-24 19:07:00,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 378 transitions. [2020-09-24 19:07:00,991 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 378 transitions. Word has length 213 [2020-09-24 19:07:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:00,991 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 378 transitions. [2020-09-24 19:07:00,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:07:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 378 transitions. [2020-09-24 19:07:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 19:07:00,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:00,996 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:00,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:07:00,997 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:00,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:00,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1743679210, now seen corresponding path program 1 times [2020-09-24 19:07:00,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:00,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734370577] [2020-09-24 19:07:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:01,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 19:07:02,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-24 19:07:02,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:07:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 19:07:02,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 19:07:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,366 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:02,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:02,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 19:07:02,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:02,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:02,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:02,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:02,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:02,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:02,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:02,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:02,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:02,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:02,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:02,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:07:02,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:07:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:07:02,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 19:07:02,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:02,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 19:07:02,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:02,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:07:02,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:02,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:02,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:07:02,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:02,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:07:02,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:02,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:02,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:02,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:07:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:02,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:02,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:02,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:02,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 19:07:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:02,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:02,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:02,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 19:07:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:02,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:02,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:02,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:02,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:02,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:02,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:02,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:07:02,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734370577] [2020-09-24 19:07:02,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:02,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:07:02,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625391743] [2020-09-24 19:07:02,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:07:02,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:02,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:07:02,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:07:02,851 INFO L87 Difference]: Start difference. First operand 346 states and 378 transitions. Second operand 6 states. [2020-09-24 19:07:03,570 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:05,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:05,604 INFO L93 Difference]: Finished difference Result 661 states and 788 transitions. [2020-09-24 19:07:05,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:07:05,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 213 [2020-09-24 19:07:05,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:05,610 INFO L225 Difference]: With dead ends: 661 [2020-09-24 19:07:05,610 INFO L226 Difference]: Without dead ends: 658 [2020-09-24 19:07:05,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:05,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-09-24 19:07:05,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 552. [2020-09-24 19:07:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-09-24 19:07:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 621 transitions. [2020-09-24 19:07:05,686 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 621 transitions. Word has length 213 [2020-09-24 19:07:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:05,687 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 621 transitions. [2020-09-24 19:07:05,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:07:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 621 transitions. [2020-09-24 19:07:05,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-09-24 19:07:05,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:05,694 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:05,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:07:05,694 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:05,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:05,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1979790938, now seen corresponding path program 1 times [2020-09-24 19:07:05,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:05,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003653293] [2020-09-24 19:07:05,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:06,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:06,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-09-24 19:07:06,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:06,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1063 [2020-09-24 19:07:06,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:06,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:07:06,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 19:07:06,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:07:06,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,086 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:07,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:07,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-24 19:07:07,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 19:07:07,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:07,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:07,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:07,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:07,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:07,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:07,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:07,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:07:07,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:07,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:07,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:07,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:07,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:07,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:07,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:07,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:07,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:07,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:07,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:07,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:07,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:07,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:07:07,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:07:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 19:07:08,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:08,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 825 [2020-09-24 19:07:08,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:08,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:07:08,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 19:07:08,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:07:08,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 19:07:08,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:07:08,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 19:07:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:08,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:07:08,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:08,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:08,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:08,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:08,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:08,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:07:08,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:07:08,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:07:08,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:07:08,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:08,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:08,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:08,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:08,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:07:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:08,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:08,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 19:07:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 19:07:08,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:07:08,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 19:07:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:08,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:08,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:07:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:08,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:08,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-09-24 19:07:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:08,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:08,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:07:08,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-09-24 19:07:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:08,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:08,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-09-24 19:07:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:08,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:08,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:08,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 19:07:08,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003653293] [2020-09-24 19:07:08,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:08,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:08,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913561249] [2020-09-24 19:07:08,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:08,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:08,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:08,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:08,844 INFO L87 Difference]: Start difference. First operand 552 states and 621 transitions. Second operand 11 states. [2020-09-24 19:07:09,403 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:10,448 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-24 19:07:13,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:13,221 INFO L93 Difference]: Finished difference Result 1502 states and 1824 transitions. [2020-09-24 19:07:13,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 19:07:13,222 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 263 [2020-09-24 19:07:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:13,229 INFO L225 Difference]: With dead ends: 1502 [2020-09-24 19:07:13,229 INFO L226 Difference]: Without dead ends: 1065 [2020-09-24 19:07:13,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=269, Invalid=853, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 19:07:13,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2020-09-24 19:07:13,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 979. [2020-09-24 19:07:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 979 states. [2020-09-24 19:07:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1147 transitions. [2020-09-24 19:07:13,357 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1147 transitions. Word has length 263 [2020-09-24 19:07:13,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:13,357 INFO L479 AbstractCegarLoop]: Abstraction has 979 states and 1147 transitions. [2020-09-24 19:07:13,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:13,357 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1147 transitions. [2020-09-24 19:07:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-24 19:07:13,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:13,363 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:13,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:07:13,364 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:13,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:13,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1303733854, now seen corresponding path program 1 times [2020-09-24 19:07:13,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:13,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989720447] [2020-09-24 19:07:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:13,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:13,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:14,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-09-24 19:07:14,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:14,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1057 [2020-09-24 19:07:14,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:14,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:07:14,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:07:14,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-09-24 19:07:14,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:14,775 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:14,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:15,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 19:07:15,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:07:15,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:15,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:15,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:15,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:15,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:15,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:15,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:15,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:15,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:07:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:15,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:15,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:07:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 19:07:15,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-24 19:07:15,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:15,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 19:07:15,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 19:07:15,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:07:15,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:07:15,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:15,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:15,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:15,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:15,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:07:15,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:07:15,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:07:15,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:07:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:15,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:07:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:15,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 19:07:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 19:07:15,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 19:07:15,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:15,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:07:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:15,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:15,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:07:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:15,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:15,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-09-24 19:07:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:15,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:15,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:07:15,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-09-24 19:07:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-09-24 19:07:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:15,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-24 19:07:16,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989720447] [2020-09-24 19:07:16,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:07:16,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 19:07:16,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029797013] [2020-09-24 19:07:16,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 19:07:16,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:16,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 19:07:16,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:07:16,061 INFO L87 Difference]: Start difference. First operand 979 states and 1147 transitions. Second operand 13 states. [2020-09-24 19:07:16,613 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:17,689 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:18,174 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:18,526 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:19,187 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 19:07:19,565 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:20,200 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 195 [2020-09-24 19:07:20,522 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:21,153 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 19:07:21,528 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 194