/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_spec1_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:13:51,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:13:51,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:13:51,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:13:51,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:13:51,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:13:51,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:13:51,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:13:51,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:13:51,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:13:51,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:13:51,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:13:51,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:13:51,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:13:51,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:13:51,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:13:51,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:13:51,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:13:51,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:13:51,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:13:51,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:13:51,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:13:51,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:13:51,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:13:51,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:13:51,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:13:51,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:13:51,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:13:51,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:13:51,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:13:51,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:13:51,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:13:51,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:13:51,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:13:51,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:13:51,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:13:51,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:13:51,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:13:51,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:13:51,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:13:51,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:13:51,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:13:51,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:13:51,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:13:51,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:13:51,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:13:51,221 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:13:51,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:13:51,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:13:51,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:13:51,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:13:51,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:13:51,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:13:51,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:13:51,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:13:51,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:13:51,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:13:51,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:13:51,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:13:51,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:13:51,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:13:51,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:13:51,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:13:51,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:13:51,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:13:51,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:13:51,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:13:51,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:13:51,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:13:51,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:13:51,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:13:51,227 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:13:51,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:13:51,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:13:51,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:13:51,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:13:51,717 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:13:51,718 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-09-25 14:13:51,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/356c28a03/d1adcffd84454e7eb1da1a7a528e6a15/FLAGf4091c5a9 [2020-09-25 14:13:52,418 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:13:52,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-09-25 14:13:52,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/356c28a03/d1adcffd84454e7eb1da1a7a528e6a15/FLAGf4091c5a9 [2020-09-25 14:13:52,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/356c28a03/d1adcffd84454e7eb1da1a7a528e6a15 [2020-09-25 14:13:52,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:13:52,732 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:13:52,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:52,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:13:52,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:13:52,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:52" (1/1) ... [2020-09-25 14:13:52,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288b8053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:52, skipping insertion in model container [2020-09-25 14:13:52,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:52" (1/1) ... [2020-09-25 14:13:52,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:13:52,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:13:53,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:53,288 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:13:53,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:53,423 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:13:53,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53 WrapperNode [2020-09-25 14:13:53,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:53,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:13:53,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:13:53,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:13:53,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (1/1) ... [2020-09-25 14:13:53,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (1/1) ... [2020-09-25 14:13:53,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (1/1) ... [2020-09-25 14:13:53,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (1/1) ... [2020-09-25 14:13:53,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (1/1) ... [2020-09-25 14:13:53,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (1/1) ... [2020-09-25 14:13:53,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (1/1) ... [2020-09-25 14:13:53,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:13:53,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:13:53,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:13:53,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:13:53,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:13:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:13:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:13:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:13:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:13:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:13:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:13:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:13:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:13:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:13:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:13:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:13:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:13:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:13:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:13:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:13:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:13:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:13:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:13:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:13:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:13:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:13:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:13:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:13:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:13:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:13:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:13:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:13:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:13:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:13:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:13:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:13:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:13:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:13:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:13:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:13:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:13:53,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:13:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:13:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:13:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:13:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:13:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:13:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:13:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:13:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:13:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:13:53,695 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:13:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:13:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:13:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:13:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:13:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:13:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:13:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:13:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:13:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:13:53,699 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:13:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:13:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:13:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:13:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:13:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:13:54,945 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:13:54,945 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:13:54,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:54 BoogieIcfgContainer [2020-09-25 14:13:54,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:13:54,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:13:54,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:13:54,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:13:54,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:13:52" (1/3) ... [2020-09-25 14:13:54,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0b7dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:54, skipping insertion in model container [2020-09-25 14:13:54,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:53" (2/3) ... [2020-09-25 14:13:54,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0b7dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:54, skipping insertion in model container [2020-09-25 14:13:54,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:54" (3/3) ... [2020-09-25 14:13:54,962 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2020-09-25 14:13:54,974 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:13:54,986 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:13:55,006 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:13:55,037 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:13:55,037 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:13:55,038 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:13:55,038 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:13:55,038 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:13:55,038 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:13:55,038 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:13:55,038 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:13:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-09-25 14:13:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:13:55,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:55,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:13:55,088 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:55,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:55,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1497316138, now seen corresponding path program 1 times [2020-09-25 14:13:55,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:55,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381994495] [2020-09-25 14:13:55,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:55,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:55,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:57,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:58,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:59,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:00,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:00,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:14:00,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:14:00,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 14:14:00,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:00,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:00,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:14:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:14:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 14:14:00,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 14:14:00,959 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:00,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:01,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:01,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:01,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:01,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:01,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 14:14:01,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:01,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:01,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:01,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:14:01,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:01,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:01,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:01,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:01,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:01,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:01,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:01,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:01,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:01,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:01,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:01,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:01,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:01,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:01,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:01,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:01,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:01,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:01,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:01,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:01,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:01,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:01,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:01,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:01,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:14:01,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:01,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:01,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:01,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:01,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:01,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:01,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:01,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:01,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:01,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:01,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:01,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:14:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:01,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:01,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:01,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:01,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:01,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:01,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:01,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:01,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:01,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:14:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:01,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:01,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:01,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:01,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:01,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:01,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:01,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:01,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:14:01,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381994495] [2020-09-25 14:14:01,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:01,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:14:01,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118026426] [2020-09-25 14:14:01,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:14:01,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:01,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:14:01,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:14:01,542 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 4 states. [2020-09-25 14:14:02,115 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:04,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:04,445 INFO L93 Difference]: Finished difference Result 692 states and 838 transitions. [2020-09-25 14:14:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:14:04,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:14:04,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:04,470 INFO L225 Difference]: With dead ends: 692 [2020-09-25 14:14:04,470 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 14:14:04,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:14:04,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 14:14:04,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 418. [2020-09-25 14:14:04,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-25 14:14:04,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 467 transitions. [2020-09-25 14:14:04,637 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 467 transitions. Word has length 142 [2020-09-25 14:14:04,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:04,638 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 467 transitions. [2020-09-25 14:14:04,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:14:04,639 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 467 transitions. [2020-09-25 14:14:04,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 14:14:04,645 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:04,646 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] [2020-09-25 14:14:04,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:14:04,646 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:04,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:04,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1793750736, now seen corresponding path program 1 times [2020-09-25 14:14:04,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:04,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353660662] [2020-09-25 14:14:04,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:04,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:04,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:05,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:05,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:09,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:09,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 14:14:09,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:14:09,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:14:09,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:09,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:09,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:14:09,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:14:09,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:14:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,055 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:10,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 14:14:10,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:10,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:14:10,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:10,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:10,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:10,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:10,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:10,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:10,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:10,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:14:10,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:10,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:10,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:10,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:10,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:14:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:14:10,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:14:10,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:14:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:10,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:14:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:10,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:14:10,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:14:10,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:10,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:10,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:14:10,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:14:10,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:14:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:10,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:10,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:10,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:10,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:10,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 14:14:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:10,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:10,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:10,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:10,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:10,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:14:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:10,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:10,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:10,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:10,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:10,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:10,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:10,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:10,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:10,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:14:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:14:10,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353660662] [2020-09-25 14:14:10,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:10,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:14:10,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698060078] [2020-09-25 14:14:10,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:14:10,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:10,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:14:10,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:14:10,636 INFO L87 Difference]: Start difference. First operand 418 states and 467 transitions. Second operand 6 states. [2020-09-25 14:14:11,184 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:12,722 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:14,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:14,120 INFO L93 Difference]: Finished difference Result 1120 states and 1388 transitions. [2020-09-25 14:14:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:14:14,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 14:14:14,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:14,131 INFO L225 Difference]: With dead ends: 1120 [2020-09-25 14:14:14,131 INFO L226 Difference]: Without dead ends: 812 [2020-09-25 14:14:14,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:14:14,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-25 14:14:14,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 669. [2020-09-25 14:14:14,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-25 14:14:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 765 transitions. [2020-09-25 14:14:14,264 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 765 transitions. Word has length 156 [2020-09-25 14:14:14,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:14,265 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 765 transitions. [2020-09-25 14:14:14,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:14:14,266 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 765 transitions. [2020-09-25 14:14:14,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 14:14:14,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:14,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:14:14,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:14:14,270 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:14,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1954752290, now seen corresponding path program 1 times [2020-09-25 14:14:14,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:14,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036384676] [2020-09-25 14:14:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:14,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:15,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:16,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 14:14:19,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:14:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 14:14:19,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:14:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:14:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-25 14:14:19,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,629 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:19,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:19,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 14:14:19,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:19,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:14:19,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:19,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:19,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:19,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:14:19,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:19,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:19,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:19,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:19,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:19,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:19,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:19,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:19,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:19,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:14:19,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:19,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:19,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:19,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:19,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:19,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:20,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:20,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:20,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 14:14:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:20,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:14:20,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:20,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:14:20,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:14:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:20,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:14:20,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:20,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:20,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 14:14:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:20,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:20,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:20,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:20,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:20,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:20,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:20,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:14:20,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:20,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:20,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:14:20,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036384676] [2020-09-25 14:14:20,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:20,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:14:20,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818665625] [2020-09-25 14:14:20,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:14:20,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:20,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:14:20,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:14:20,181 INFO L87 Difference]: Start difference. First operand 669 states and 765 transitions. Second operand 9 states. [2020-09-25 14:14:20,800 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:22,303 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 14:14:22,849 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 14:14:23,173 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:23,486 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:23,781 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:24,097 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:14:24,396 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:24,918 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:27,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:27,068 INFO L93 Difference]: Finished difference Result 1889 states and 2328 transitions. [2020-09-25 14:14:27,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 14:14:27,068 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 14:14:27,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:27,088 INFO L225 Difference]: With dead ends: 1889 [2020-09-25 14:14:27,088 INFO L226 Difference]: Without dead ends: 1250 [2020-09-25 14:14:27,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:14:27,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-09-25 14:14:27,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1103. [2020-09-25 14:14:27,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-09-25 14:14:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1252 transitions. [2020-09-25 14:14:27,306 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1252 transitions. Word has length 161 [2020-09-25 14:14:27,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:27,307 INFO L479 AbstractCegarLoop]: Abstraction has 1103 states and 1252 transitions. [2020-09-25 14:14:27,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:14:27,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1252 transitions. [2020-09-25 14:14:27,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 14:14:27,311 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:27,312 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] [2020-09-25 14:14:27,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:14:27,312 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:27,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:27,313 INFO L82 PathProgramCache]: Analyzing trace with hash -2058158355, now seen corresponding path program 1 times [2020-09-25 14:14:27,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:27,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498653269] [2020-09-25 14:14:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:27,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:28,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:30,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:30,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:14:30,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:14:30,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3128 [2020-09-25 14:14:30,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:30,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:14:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 14:14:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 14:14:30,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:30,877 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:30,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:30,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:31,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:31,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 14:14:31,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:31,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:31,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 14:14:31,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:31,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:31,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:31,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:31,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:31,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:31,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:31,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:31,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:31,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:31,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:31,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:31,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:31,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:31,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:31,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:14:31,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:31,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:31,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:31,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:31,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:31,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:14:31,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:14:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:31,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:14:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:31,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:31,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:31,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:14:31,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:14:31,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:31,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:14:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:31,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:14:31,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:14:31,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:14:31,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:14:31,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:14:31,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:14:31,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:31,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:14:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:31,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:31,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:14:31,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:14:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:31,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:14:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:31,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:31,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:31,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:31,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:31,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:14:31,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:31,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:14:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:31,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:14:31,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498653269] [2020-09-25 14:14:31,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:14:31,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:14:31,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235748933] [2020-09-25 14:14:31,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:14:31,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:14:31,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:14:31,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:14:31,546 INFO L87 Difference]: Start difference. First operand 1103 states and 1252 transitions. Second operand 11 states. [2020-09-25 14:14:32,272 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:14:33,698 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:14:34,035 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:14:34,425 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:34,831 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:14:35,208 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:14:35,888 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:14:36,146 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:36,564 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:14:38,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:14:38,416 INFO L93 Difference]: Finished difference Result 1429 states and 1732 transitions. [2020-09-25 14:14:38,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 14:14:38,417 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 14:14:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:14:38,433 INFO L225 Difference]: With dead ends: 1429 [2020-09-25 14:14:38,433 INFO L226 Difference]: Without dead ends: 1426 [2020-09-25 14:14:38,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-09-25 14:14:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-09-25 14:14:38,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1103. [2020-09-25 14:14:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-09-25 14:14:38,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1250 transitions. [2020-09-25 14:14:38,616 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1250 transitions. Word has length 166 [2020-09-25 14:14:38,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:14:38,617 INFO L479 AbstractCegarLoop]: Abstraction has 1103 states and 1250 transitions. [2020-09-25 14:14:38,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:14:38,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1250 transitions. [2020-09-25 14:14:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 14:14:38,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:14:38,622 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] [2020-09-25 14:14:38,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:14:38,623 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:14:38,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:14:38,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1232487903, now seen corresponding path program 1 times [2020-09-25 14:14:38,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:14:38,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929905746] [2020-09-25 14:14:38,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:14:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:38,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 14:14:39,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 691 [2020-09-25 14:14:39,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:14:39,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-25 14:14:39,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:14:39,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:39,665 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:14:39,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:14:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:14:39,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 14:14:39,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:39,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:39,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:14:39,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:14:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:39,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:39,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:39,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:14:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:39,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:39,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:39,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:39,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:14:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:14:39,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:14:39,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:39,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:14:39,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:14:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:14:39,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:14:39,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:14:39,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:14:39,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:14:39,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:14:39,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:14:39,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:14:39,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:14:39,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:14:39,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:14:39,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0