/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:07:37,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:07:37,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:07:37,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:07:37,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:07:37,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:07:37,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:07:37,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:07:37,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:07:37,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:07:37,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:07:37,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:07:37,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:07:37,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:07:37,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:07:37,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:07:37,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:07:37,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:07:37,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:07:37,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:07:37,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:07:37,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:07:37,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:07:37,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:07:37,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:07:37,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:07:37,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:07:37,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:07:37,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:07:37,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:07:37,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:07:37,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:07:37,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:07:37,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:07:37,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:07:37,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:07:37,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:07:37,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:07:37,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:07:37,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:07:37,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:07:37,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:07:37,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:07:37,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:07:37,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:07:37,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:07:37,879 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:07:37,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:07:37,880 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:07:37,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:07:37,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:07:37,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:07:37,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:07:37,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:07:37,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:07:37,881 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:07:37,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:07:37,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:07:37,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:07:37,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:07:37,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:07:37,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:07:37,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:07:37,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:07:37,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:07:37,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:07:37,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:07:37,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:07:37,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:07:37,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:07:37,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:07:37,884 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=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:07:38,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:07:38,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:07:38,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:07:38,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:07:38,371 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:07:38,373 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c [2020-09-24 18:07:38,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccd4c29b4/376547c11736465cadd73777683c7f43/FLAG7a9cc7a89 [2020-09-24 18:07:39,039 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:07:39,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c [2020-09-24 18:07:39,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccd4c29b4/376547c11736465cadd73777683c7f43/FLAG7a9cc7a89 [2020-09-24 18:07:39,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ccd4c29b4/376547c11736465cadd73777683c7f43 [2020-09-24 18:07:39,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:07:39,329 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:07:39,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:07:39,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:07:39,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:07:39,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:07:39" (1/1) ... [2020-09-24 18:07:39,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:39, skipping insertion in model container [2020-09-24 18:07:39,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:07:39" (1/1) ... [2020-09-24 18:07:39,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:07:39,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:07:39,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:07:39,867 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:07:40,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:07:40,116 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:07:40,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40 WrapperNode [2020-09-24 18:07:40,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:07:40,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:07:40,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:07:40,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:07:40,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (1/1) ... [2020-09-24 18:07:40,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (1/1) ... [2020-09-24 18:07:40,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (1/1) ... [2020-09-24 18:07:40,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (1/1) ... [2020-09-24 18:07:40,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (1/1) ... [2020-09-24 18:07:40,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (1/1) ... [2020-09-24 18:07:40,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (1/1) ... [2020-09-24 18:07:40,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:07:40,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:07:40,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:07:40,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:07:40,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:07:40,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:07:40,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:07:40,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:07:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:07:40,333 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:07:40,334 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:07:40,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:07:40,334 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:07:40,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:07:40,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:07:40,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:07:40,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:07:40,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:07:40,336 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:07:40,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:07:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:07:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:07:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:07:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:07:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:07:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:07:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:07:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:07:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:07:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:07:40,341 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:07:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:07:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:07:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:07:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:07:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:07:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:07:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:07:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:07:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:07:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:07:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:07:40,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:07:40,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:07:40,352 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:07:40,352 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:07:40,352 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:07:40,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:07:40,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:07:40,353 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:07:40,353 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:07:40,353 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:07:40,354 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:07:40,354 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:07:40,354 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:07:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:07:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:07:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:07:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:07:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:07:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:07:40,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:07:40,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:07:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:07:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:07:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:07:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:07:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:07:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:07:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:07:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:07:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:07:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:07:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:07:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:07:40,360 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:07:40,361 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:07:40,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:07:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:07:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:07:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:07:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:07:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:07:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:07:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:07:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:07:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:07:40,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:07:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:07:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:07:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:07:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:07:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:07:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:07:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:07:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:07:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:07:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:07:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:07:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:07:40,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:07:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:07:40,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:07:41,790 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:07:41,790 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:07:41,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:07:41 BoogieIcfgContainer [2020-09-24 18:07:41,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:07:41,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:07:41,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:07:41,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:07:41,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:07:39" (1/3) ... [2020-09-24 18:07:41,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38093cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:07:41, skipping insertion in model container [2020-09-24 18:07:41,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:07:40" (2/3) ... [2020-09-24 18:07:41,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38093cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:07:41, skipping insertion in model container [2020-09-24 18:07:41,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:07:41" (3/3) ... [2020-09-24 18:07:41,807 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2020-09-24 18:07:41,818 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:07:41,829 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:07:41,852 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:07:41,885 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:07:41,885 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:07:41,886 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:07:41,886 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:07:41,886 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:07:41,886 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:07:41,886 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:07:41,887 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:07:41,921 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-24 18:07:41,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:07:41,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:07:41,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:07:41,964 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:07:41,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:07:41,978 INFO L82 PathProgramCache]: Analyzing trace with hash 758256714, now seen corresponding path program 1 times [2020-09-24 18:07:41,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:07:41,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853304039] [2020-09-24 18:07:41,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:07:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:42,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:42,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:44,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:46,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:47,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:47,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:07:47,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:07:47,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 18:07:47,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:07:47,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:47,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-24 18:07:47,859 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:47,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:47,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:07:48,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 18:07:48,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:48,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:48,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:07:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:48,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:48,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:48,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:48,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:07:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:48,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:07:48,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:48,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:07:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:48,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:07:48,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:48,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:48,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:07:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:48,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:48,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:48,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:48,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:07:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:07:48,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:48,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:48,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:07:48,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:07:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:07:48,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:07:48,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:07:48,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:48,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:48,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:48,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:48,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:48,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:07:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:48,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:48,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:48,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:48,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:07:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:48,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:48,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:48,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:48,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:48,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:48,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:48,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:48,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:48,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:07:48,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853304039] [2020-09-24 18:07:48,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:07:48,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:07:48,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481488752] [2020-09-24 18:07:48,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:07:48,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:07:48,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:07:48,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:07:48,337 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-09-24 18:07:49,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:07:49,545 INFO L93 Difference]: Finished difference Result 456 states and 539 transitions. [2020-09-24 18:07:49,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:07:49,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:07:49,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:07:49,580 INFO L225 Difference]: With dead ends: 456 [2020-09-24 18:07:49,580 INFO L226 Difference]: Without dead ends: 294 [2020-09-24 18:07:49,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:07:49,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-24 18:07:49,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 247. [2020-09-24 18:07:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-24 18:07:49,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 268 transitions. [2020-09-24 18:07:49,688 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 268 transitions. Word has length 160 [2020-09-24 18:07:49,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:07:49,689 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 268 transitions. [2020-09-24 18:07:49,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:07:49,689 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 268 transitions. [2020-09-24 18:07:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:07:49,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:07:49,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:07:49,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:07:49,695 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:07:49,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:07:49,695 INFO L82 PathProgramCache]: Analyzing trace with hash -550615221, now seen corresponding path program 1 times [2020-09-24 18:07:49,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:07:49,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830233989] [2020-09-24 18:07:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:07:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:49,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:49,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:51,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:51,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:52,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:54,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:54,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:07:54,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:07:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 18:07:54,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:54,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:07:54,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:07:54,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:07:54,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:55,184 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:55,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:07:55,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:07:55,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:55,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:07:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:55,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:55,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:07:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:55,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:55,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:55,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:07:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:55,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:07:55,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:55,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:07:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:55,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:55,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:55,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:07:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:07:55,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:55,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:07:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:07:55,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:07:55,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:07:55,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:55,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:55,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:07:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:55,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:55,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:55,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:07:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:55,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:55,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:55,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:55,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:55,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:55,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:07:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:55,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:55,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:07:55,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830233989] [2020-09-24 18:07:55,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:07:55,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:07:55,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836238075] [2020-09-24 18:07:55,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:07:55,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:07:55,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:07:55,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:07:55,442 INFO L87 Difference]: Start difference. First operand 247 states and 268 transitions. Second operand 5 states. [2020-09-24 18:07:56,090 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:56,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:07:56,955 INFO L93 Difference]: Finished difference Result 375 states and 423 transitions. [2020-09-24 18:07:56,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:07:56,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:07:56,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:07:56,960 INFO L225 Difference]: With dead ends: 375 [2020-09-24 18:07:56,960 INFO L226 Difference]: Without dead ends: 283 [2020-09-24 18:07:56,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:07:56,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-24 18:07:57,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 237. [2020-09-24 18:07:57,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-24 18:07:57,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-09-24 18:07:57,007 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 161 [2020-09-24 18:07:57,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:07:57,008 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-09-24 18:07:57,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:07:57,008 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-09-24 18:07:57,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:07:57,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:07:57,011 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:07:57,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:07:57,011 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:07:57,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:07:57,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1782587461, now seen corresponding path program 1 times [2020-09-24 18:07:57,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:07:57,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835923757] [2020-09-24 18:07:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:07:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:57,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:57,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:57,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:59,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:08:02,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:02,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 18:08:02,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:02,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:08:02,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:08:02,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,373 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:02,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:02,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 18:08:02,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:02,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:02,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:02,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:02,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:02,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:02,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:02,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:02,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:02,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:02,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:02,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:02,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:02,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:08:02,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:02,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:08:02,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:02,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:08:02,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:02,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:02,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:02,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:02,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:02,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:08:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:02,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:02,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:02,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:02,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:08:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:02,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:02,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:02,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:02,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:02,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:02,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:02,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:02,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:02,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835923757] [2020-09-24 18:08:02,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:02,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:08:02,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897978431] [2020-09-24 18:08:02,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:08:02,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:02,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:08:02,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:08:02,697 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 6 states. [2020-09-24 18:08:03,408 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:05,176 INFO L93 Difference]: Finished difference Result 555 states and 645 transitions. [2020-09-24 18:08:05,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:08:05,176 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:08:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:05,185 INFO L225 Difference]: With dead ends: 555 [2020-09-24 18:08:05,185 INFO L226 Difference]: Without dead ends: 433 [2020-09-24 18:08:05,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:08:05,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-24 18:08:05,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 349. [2020-09-24 18:08:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-24 18:08:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 386 transitions. [2020-09-24 18:08:05,284 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 386 transitions. Word has length 174 [2020-09-24 18:08:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:05,286 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 386 transitions. [2020-09-24 18:08:05,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:08:05,286 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 386 transitions. [2020-09-24 18:08:05,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-24 18:08:05,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:05,289 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:05,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:08:05,290 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:05,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:05,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1899572148, now seen corresponding path program 1 times [2020-09-24 18:08:05,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:05,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543898376] [2020-09-24 18:08:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:05,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:06,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:08,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 18:08:10,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:10,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 18:08:10,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:08:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 18:08:10,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:08:10,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,744 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:10,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:10,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 18:08:10,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:10,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:10,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:10,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:10,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:10,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:10,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:10,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:10,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:10,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:10,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:10,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:10,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:10,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 18:08:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:08:10,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:10,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:08:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:10,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:10,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:10,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:10,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:11,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 18:08:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:11,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:11,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:11,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:11,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:11,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:11,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:11,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:11,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:11,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:11,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 18:08:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:11,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:11,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:11,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:11,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:08:11,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:08:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:11,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:08:11,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543898376] [2020-09-24 18:08:11,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:11,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:08:11,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942583469] [2020-09-24 18:08:11,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:08:11,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:11,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:08:11,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:08:11,120 INFO L87 Difference]: Start difference. First operand 349 states and 386 transitions. Second operand 10 states. [2020-09-24 18:08:11,595 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:12,557 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:12,853 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:08:13,770 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:08:14,099 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 18:08:14,386 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 18:08:14,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:14,449 INFO L93 Difference]: Finished difference Result 580 states and 688 transitions. [2020-09-24 18:08:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 18:08:14,450 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-24 18:08:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:14,451 INFO L225 Difference]: With dead ends: 580 [2020-09-24 18:08:14,451 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:08:14,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-24 18:08:14,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:08:14,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:08:14,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:08:14,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:08:14,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-24 18:08:14,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:14,454 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:08:14,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:08:14,455 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:08:14,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:08:14,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:08:14,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:08:14,647 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:14,820 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:14,996 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:15,173 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:15,340 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:15,518 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:15,828 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 7 [2020-09-24 18:08:15,989 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:16,157 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:16,324 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:16,437 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-24 18:08:16,606 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:16,731 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-24 18:08:17,056 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:08:17,383 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:08:17,719 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:08:18,043 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:08:18,187 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:18,339 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:18,498 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:18,656 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:18,813 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:18,966 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:19,132 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:19,289 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:19,450 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:19,603 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:19,760 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:19,865 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-24 18:08:20,023 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:20,184 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:20,336 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:20,490 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:20,644 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:20,801 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:20,958 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:21,116 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:21,277 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:21,444 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:21,597 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:21,755 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:21,914 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:22,083 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:22,244 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:22,398 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:22,674 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 7 [2020-09-24 18:08:22,836 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:22,999 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:23,156 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:23,261 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-24 18:08:23,418 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:23,570 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:23,728 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:23,885 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:24,038 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:24,196 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:24,360 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:24,519 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:24,676 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:24,833 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:25,011 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:25,169 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:25,326 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:25,482 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:25,640 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:08:26,050 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 9 [2020-09-24 18:08:26,260 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-24 18:08:26,471 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 18:08:26,711 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 18:08:26,930 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-24 18:08:27,163 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-24 18:08:27,421 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 10 [2020-09-24 18:08:27,682 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:27,878 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 18:08:28,225 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 16 [2020-09-24 18:08:28,444 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-24 18:08:28,832 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 10