/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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_spec3_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:22:23,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:22:23,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:22:23,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:22:23,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:22:23,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:22:23,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:22:23,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:22:23,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:22:23,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:22:23,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:22:23,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:22:23,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:22:23,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:22:23,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:22:23,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:22:23,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:22:23,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:22:23,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:22:23,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:22:23,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:22:23,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:22:23,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:22:23,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:22:23,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:22:23,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:22:23,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:22:23,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:22:23,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:22:23,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:22:23,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:22:23,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:22:23,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:22:23,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:22:23,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:22:23,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:22:23,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:22:23,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:22:23,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:22:23,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:22:23,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:22:23,748 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 21:22:23,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:22:23,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:22:23,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:22:23,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:22:23,776 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:22:23,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:22:23,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:22:23,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:22:23,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:22:23,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:22:23,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:22:23,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:22:23,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:22:23,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:22:23,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:22:23,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:22:23,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:22:23,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:22:23,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:22:23,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:22:23,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:22:23,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:22:23,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:22:23,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:22:23,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:22:23,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:22:23,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:22:23,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:22:23,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:22:23,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:22:24,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:22:24,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:22:24,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:22:24,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:22:24,298 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:22:24,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-09-24 21:22:24,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc4e6fd53/2fe2d8c3adad486a87e1e43342d158b6/FLAGf3dda2b8d [2020-09-24 21:22:25,036 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:22:25,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product53.cil.c [2020-09-24 21:22:25,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc4e6fd53/2fe2d8c3adad486a87e1e43342d158b6/FLAGf3dda2b8d [2020-09-24 21:22:25,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc4e6fd53/2fe2d8c3adad486a87e1e43342d158b6 [2020-09-24 21:22:25,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:22:25,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:22:25,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:22:25,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:22:25,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:22:25,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:25" (1/1) ... [2020-09-24 21:22:25,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dadf5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:25, skipping insertion in model container [2020-09-24 21:22:25,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:22:25" (1/1) ... [2020-09-24 21:22:25,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:22:25,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:22:25,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:22:25,966 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:22:26,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:22:26,102 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:22:26,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26 WrapperNode [2020-09-24 21:22:26,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:22:26,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:22:26,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:22:26,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:22:26,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (1/1) ... [2020-09-24 21:22:26,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (1/1) ... [2020-09-24 21:22:26,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (1/1) ... [2020-09-24 21:22:26,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (1/1) ... [2020-09-24 21:22:26,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (1/1) ... [2020-09-24 21:22:26,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (1/1) ... [2020-09-24 21:22:26,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (1/1) ... [2020-09-24 21:22:26,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:22:26,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:22:26,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:22:26,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:22:26,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (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 21:22:26,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:22:26,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:22:26,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:22:26,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:22:26,297 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:22:26,297 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:22:26,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:22:26,298 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:22:26,298 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:22:26,298 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:22:26,298 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:22:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:22:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:22:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:22:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:22:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:22:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:22:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:22:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:22:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:22:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:22:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:22:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:22:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:22:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:22:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:22:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:22:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:22:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:22:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:22:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:22:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:22:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:22:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:22:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:22:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:22:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:22:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:22:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:22:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:22:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:22:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:22:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:22:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:22:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:22:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:22:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:22:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:22:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:22:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:22:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:22:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:22:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:22:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:22:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:22:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:22:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:22:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:22:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:22:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:22:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:22:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:22:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:22:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:22:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:22:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:22:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:22:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:22:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:22:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:22:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:22:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:22:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:22:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:22:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:22:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:22:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:22:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:22:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:22:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:22:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:22:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:22:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:22:27,623 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:22:27,623 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:22:27,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:27 BoogieIcfgContainer [2020-09-24 21:22:27,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:22:27,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:22:27,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:22:27,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:22:27,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:22:25" (1/3) ... [2020-09-24 21:22:27,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b94e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:27, skipping insertion in model container [2020-09-24 21:22:27,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:22:26" (2/3) ... [2020-09-24 21:22:27,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b94e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:22:27, skipping insertion in model container [2020-09-24 21:22:27,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:22:27" (3/3) ... [2020-09-24 21:22:27,652 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2020-09-24 21:22:27,664 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:22:27,677 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:22:27,701 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:22:27,742 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:22:27,743 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:22:27,743 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:22:27,743 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:22:27,743 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:22:27,744 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:22:27,745 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:22:27,745 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:22:27,785 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states. [2020-09-24 21:22:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 21:22:27,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:27,820 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] [2020-09-24 21:22:27,820 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:27,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:27,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1143611039, now seen corresponding path program 1 times [2020-09-24 21:22:27,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:27,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55293755] [2020-09-24 21:22:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:28,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:28,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:29,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:32,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:32,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 21:22:32,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:32,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4444 [2020-09-24 21:22:32,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:22:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 21:22:32,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:22:33,111 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:33,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:33,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-24 21:22:33,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:22:33,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:33,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:22:33,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:33,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:33,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:33,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:22:33,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:33,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:33,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:33,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:33,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:22:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:33,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:33,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:33,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:33,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:33,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 21:22:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:33,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:33,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:33,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:33,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 21:22:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:33,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:33,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:33,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:33,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:33,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:33,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:33,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:33,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:33,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:33,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:33,710 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 21:22:33,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55293755] [2020-09-24 21:22:33,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:33,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:22:33,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596214313] [2020-09-24 21:22:33,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:22:33,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:33,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:22:33,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:22:33,745 INFO L87 Difference]: Start difference. First operand 343 states. Second operand 4 states. [2020-09-24 21:22:34,404 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:35,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:35,755 INFO L93 Difference]: Finished difference Result 553 states and 657 transitions. [2020-09-24 21:22:35,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:22:35,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 21:22:35,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:35,778 INFO L225 Difference]: With dead ends: 553 [2020-09-24 21:22:35,779 INFO L226 Difference]: Without dead ends: 335 [2020-09-24 21:22:35,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:22:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-24 21:22:35,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 292. [2020-09-24 21:22:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-24 21:22:35,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 319 transitions. [2020-09-24 21:22:35,907 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 319 transitions. Word has length 153 [2020-09-24 21:22:35,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:35,908 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 319 transitions. [2020-09-24 21:22:35,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:22:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 319 transitions. [2020-09-24 21:22:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 21:22:35,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:35,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:35,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:22:35,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:35,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1399635308, now seen corresponding path program 1 times [2020-09-24 21:22:35,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:35,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554744466] [2020-09-24 21:22:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:40,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:40,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:40,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-24 21:22:40,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:22:40,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 21:22:40,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:22:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:22:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 21:22:40,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:41,321 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:41,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:41,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 21:22:41,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:22:41,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:41,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:41,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:41,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:41,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:41,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:41,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:41,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:41,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:41,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:41,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:41,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:41,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 21:22:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:22:41,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:22:41,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:22:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:22:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:22:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:22:41,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:22:41,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 21:22:41,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:22:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:22:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:22:41,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:22:41,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:22:41,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:22:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:22:41,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:41,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:41,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:41,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 21:22:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:41,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:41,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 21:22:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:41,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:41,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:41,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 21:22:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:41,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:41,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:41,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:41,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:41,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:41,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:41,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:41,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:41,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:41,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:41,880 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 21:22:41,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554744466] [2020-09-24 21:22:41,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:41,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:22:41,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879993996] [2020-09-24 21:22:41,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:22:41,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:41,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:22:41,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:22:41,886 INFO L87 Difference]: Start difference. First operand 292 states and 319 transitions. Second operand 6 states. [2020-09-24 21:22:42,377 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:43,945 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:22:45,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:45,706 INFO L93 Difference]: Finished difference Result 710 states and 850 transitions. [2020-09-24 21:22:45,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:22:45,706 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2020-09-24 21:22:45,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:45,714 INFO L225 Difference]: With dead ends: 710 [2020-09-24 21:22:45,714 INFO L226 Difference]: Without dead ends: 528 [2020-09-24 21:22:45,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:22:45,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-09-24 21:22:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 445. [2020-09-24 21:22:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-09-24 21:22:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 494 transitions. [2020-09-24 21:22:45,814 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 494 transitions. Word has length 181 [2020-09-24 21:22:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:45,815 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 494 transitions. [2020-09-24 21:22:45,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:22:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 494 transitions. [2020-09-24 21:22:45,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 21:22:45,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:45,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:45,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:22:45,820 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:45,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1002893624, now seen corresponding path program 1 times [2020-09-24 21:22:45,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:45,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848510451] [2020-09-24 21:22:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:45,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:46,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:46,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:49,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:49,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 21:22:49,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:49,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4081 [2020-09-24 21:22:49,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:22:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:22:49,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 21:22:49,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,264 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:50,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:50,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-24 21:22:50,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:50,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:22:50,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:50,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:50,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:50,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:50,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:50,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:50,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:22:50,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:50,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:50,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:50,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:50,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:50,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 21:22:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 21:22:50,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:22:50,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:50,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 21:22:50,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:22:50,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:22:50,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:50,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:22:50,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:22:50,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:22:50,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:22:50,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:50,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:50,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:22:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:22:50,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:50,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:50,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:50,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:50,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:22:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:50,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:50,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:50,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 21:22:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:50,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:50,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:50,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 21:22:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:50,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:22:50,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:50,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 21:22:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:50,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:50,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:50,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:50,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:50,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:50,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:50,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:50,838 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 21:22:50,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848510451] [2020-09-24 21:22:50,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:50,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:22:50,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171979156] [2020-09-24 21:22:50,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:22:50,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:50,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:22:50,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:22:50,843 INFO L87 Difference]: Start difference. First operand 445 states and 494 transitions. Second operand 9 states. [2020-09-24 21:22:51,381 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:53,381 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:53,711 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:22:54,096 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:54,435 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:22:54,749 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:55,236 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:55,537 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:56,920 INFO L93 Difference]: Finished difference Result 1069 states and 1289 transitions. [2020-09-24 21:22:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 21:22:56,920 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 196 [2020-09-24 21:22:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:56,927 INFO L225 Difference]: With dead ends: 1069 [2020-09-24 21:22:56,927 INFO L226 Difference]: Without dead ends: 734 [2020-09-24 21:22:56,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 21:22:56,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2020-09-24 21:22:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 644. [2020-09-24 21:22:57,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-09-24 21:22:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 735 transitions. [2020-09-24 21:22:57,022 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 735 transitions. Word has length 196 [2020-09-24 21:22:57,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:57,022 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 735 transitions. [2020-09-24 21:22:57,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:22:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 735 transitions. [2020-09-24 21:22:57,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 21:22:57,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:57,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:57,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:22:57,028 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:57,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:57,028 INFO L82 PathProgramCache]: Analyzing trace with hash 904825679, now seen corresponding path program 1 times [2020-09-24 21:22:57,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:57,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578618276] [2020-09-24 21:22:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:57,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:57,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-09-24 21:23:02,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:23:02,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 21:23:02,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:23:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:23:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 21:23:02,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,395 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:23:02,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:23:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:23:02,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 21:23:02,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:23:02,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:02,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:23:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:23:02,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:02,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:23:02,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:23:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:23:02,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:23:02,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:23:02,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:02,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:23:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:02,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:23:02,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:23:02,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:23:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:23:02,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:02,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:23:02,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:23:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:23:02,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:23:02,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:23:02,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:23:02,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:23:02,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 21:23:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 21:23:02,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 21:23:02,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 21:23:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:23:02,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:23:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:23:02,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 21:23:02,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:23:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:23:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:23:02,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:23:02,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:23:02,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:23:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:23:02,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:23:02,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:23:02,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:23:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:23:02,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:23:02,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:02,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:23:02,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:23:02,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:23:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:02,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:02,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:23:02,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:23:03,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:23:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:23:03,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:23:03,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:03,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 21:23:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:03,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:03,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:23:03,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:03,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 21:23:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:03,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:03,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:23:03,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:03,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 21:23:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:03,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:03,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:03,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:23:03,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:03,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:23:03,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:03,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:23:03,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:23:03,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:23:03,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:23:03,199 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 21:23:03,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578618276] [2020-09-24 21:23:03,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:23:03,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:23:03,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156320411] [2020-09-24 21:23:03,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:23:03,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:23:03,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:23:03,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:23:03,202 INFO L87 Difference]: Start difference. First operand 644 states and 735 transitions. Second operand 9 states. [2020-09-24 21:23:03,930 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:23:04,754 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:23:06,457 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:23:07,036 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:23:12,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:23:12,107 INFO L93 Difference]: Finished difference Result 2082 states and 2678 transitions. [2020-09-24 21:23:12,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 21:23:12,108 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2020-09-24 21:23:12,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:23:12,119 INFO L225 Difference]: With dead ends: 2082 [2020-09-24 21:23:12,119 INFO L226 Difference]: Without dead ends: 1736 [2020-09-24 21:23:12,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2020-09-24 21:23:12,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2020-09-24 21:23:12,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1550. [2020-09-24 21:23:12,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1550 states. [2020-09-24 21:23:12,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 1879 transitions. [2020-09-24 21:23:12,324 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 1879 transitions. Word has length 210 [2020-09-24 21:23:12,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:23:12,325 INFO L479 AbstractCegarLoop]: Abstraction has 1550 states and 1879 transitions. [2020-09-24 21:23:12,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:23:12,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 1879 transitions. [2020-09-24 21:23:12,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 21:23:12,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:23:12,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:23:12,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:23:12,330 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:23:12,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:23:12,331 INFO L82 PathProgramCache]: Analyzing trace with hash -54966158, now seen corresponding path program 1 times [2020-09-24 21:23:12,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:23:12,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811051293] [2020-09-24 21:23:12,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:23:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:23:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:23:13,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:23:13,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-09-24 21:23:13,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:23:13,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-09-24 21:23:13,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:23:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:23:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 21:23:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:23:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0